TI TPS6594 PMIC support (RTC, pinctrl, regulators)

Merge series from Esteban Blanc <[e-mail]>:

TPS6594 is a Power Management IC which provides regulators and others
features like GPIOs, RTC, watchdog, ESMs (Error Signal Monitor), and
PFSM (Pre-configurable Finite State Machine). The SoC and the PMIC can
communicate through the I2C or SPI interfaces.
TPS6594 is the super-set device while TPS6593 and LP8764 are derivatives.

This series adds support to TI TPS6594 PMIC and its derivatives.

drivers/mfd/Kconfig

···
 	  If you say yes here you get support for the TPS65912 series of
 	  PM chips with SPI interface.
 
+config MFD_TPS6594
+	tristate
+	select MFD_CORE
+	select REGMAP
+	select REGMAP_IRQ
+
+config MFD_TPS6594_I2C
+	tristate "TI TPS6594 Power Management chip with I2C"
+	select MFD_TPS6594
+	select REGMAP_I2C
+	select CRC8
+	depends on I2C
+	help
+	  If you say yes here you get support for the TPS6594 series of
+	  PM chips with I2C interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps6594-i2c.
+
+config MFD_TPS6594_SPI
+	tristate "TI TPS6594 Power Management chip with SPI"
+	select MFD_TPS6594
+	select REGMAP_SPI
+	select CRC8
+	depends on SPI_MASTER
+	help
+	  If you say yes here you get support for the TPS6594 series of
+	  PM chips with SPI interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called tps6594-spi.
+
 config TWL4030_CORE
 	bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support"
 	depends on I2C=y

drivers/mfd/Makefile

···
 obj-$(CONFIG_MFD_TPS65912)	+= tps65912-core.o
 obj-$(CONFIG_MFD_TPS65912_I2C)	+= tps65912-i2c.o
 obj-$(CONFIG_MFD_TPS65912_SPI)  += tps65912-spi.o
+obj-$(CONFIG_MFD_TPS6594)	+= tps6594-core.o
+obj-$(CONFIG_MFD_TPS6594_I2C)	+= tps6594-i2c.o
+obj-$(CONFIG_MFD_TPS6594_SPI)	+= tps6594-spi.o
 obj-$(CONFIG_MENELAUS)		+= menelaus.o
 
 obj-$(CONFIG_TWL4030_CORE)	+= twl-core.o twl4030-irq.o twl6030-irq.o

drivers/mfd/tps6594-core.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Core functions for TI TPS6594/TPS6593/LP8764 PMICs
+ *
+ * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps6594.h>
+
+#define TPS6594_CRC_SYNC_TIMEOUT_MS 150
+
+/* Completion to synchronize CRC feature enabling on all PMICs */
+static DECLARE_COMPLETION(tps6594_crc_comp);
+
+static const struct resource tps6594_regulator_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_OV, TPS6594_IRQ_NAME_BUCK1_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_UV, TPS6594_IRQ_NAME_BUCK1_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_SC, TPS6594_IRQ_NAME_BUCK1_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_ILIM, TPS6594_IRQ_NAME_BUCK1_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_OV, TPS6594_IRQ_NAME_BUCK2_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_UV, TPS6594_IRQ_NAME_BUCK2_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_SC, TPS6594_IRQ_NAME_BUCK2_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_ILIM, TPS6594_IRQ_NAME_BUCK2_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_OV, TPS6594_IRQ_NAME_BUCK3_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_UV, TPS6594_IRQ_NAME_BUCK3_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_SC, TPS6594_IRQ_NAME_BUCK3_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_ILIM, TPS6594_IRQ_NAME_BUCK3_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_OV, TPS6594_IRQ_NAME_BUCK4_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_UV, TPS6594_IRQ_NAME_BUCK4_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_SC, TPS6594_IRQ_NAME_BUCK4_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_ILIM, TPS6594_IRQ_NAME_BUCK4_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_OV, TPS6594_IRQ_NAME_BUCK5_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_UV, TPS6594_IRQ_NAME_BUCK5_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_SC, TPS6594_IRQ_NAME_BUCK5_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_ILIM, TPS6594_IRQ_NAME_BUCK5_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_OV, TPS6594_IRQ_NAME_LDO1_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_UV, TPS6594_IRQ_NAME_LDO1_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_SC, TPS6594_IRQ_NAME_LDO1_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_ILIM, TPS6594_IRQ_NAME_LDO1_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_OV, TPS6594_IRQ_NAME_LDO2_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_UV, TPS6594_IRQ_NAME_LDO2_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_SC, TPS6594_IRQ_NAME_LDO2_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_ILIM, TPS6594_IRQ_NAME_LDO2_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_OV, TPS6594_IRQ_NAME_LDO3_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_UV, TPS6594_IRQ_NAME_LDO3_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_SC, TPS6594_IRQ_NAME_LDO3_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_ILIM, TPS6594_IRQ_NAME_LDO3_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_OV, TPS6594_IRQ_NAME_LDO4_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_UV, TPS6594_IRQ_NAME_LDO4_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_SC, TPS6594_IRQ_NAME_LDO4_SC),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_ILIM, TPS6594_IRQ_NAME_LDO4_ILIM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_OV, TPS6594_IRQ_NAME_VCCA_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_UV, TPS6594_IRQ_NAME_VCCA_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_OV, TPS6594_IRQ_NAME_VMON1_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_UV, TPS6594_IRQ_NAME_VMON1_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_RV, TPS6594_IRQ_NAME_VMON1_RV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_OV, TPS6594_IRQ_NAME_VMON2_OV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_UV, TPS6594_IRQ_NAME_VMON2_UV),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_RV, TPS6594_IRQ_NAME_VMON2_RV),
+};
+
+static const struct resource tps6594_pinctrl_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO9, TPS6594_IRQ_NAME_GPIO9),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO10, TPS6594_IRQ_NAME_GPIO10),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO11, TPS6594_IRQ_NAME_GPIO11),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO1, TPS6594_IRQ_NAME_GPIO1),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO2, TPS6594_IRQ_NAME_GPIO2),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO3, TPS6594_IRQ_NAME_GPIO3),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO4, TPS6594_IRQ_NAME_GPIO4),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO5, TPS6594_IRQ_NAME_GPIO5),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO6, TPS6594_IRQ_NAME_GPIO6),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO7, TPS6594_IRQ_NAME_GPIO7),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO8, TPS6594_IRQ_NAME_GPIO8),
+};
+
+static const struct resource tps6594_pfsm_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NPWRON_START, TPS6594_IRQ_NAME_NPWRON_START),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ENABLE, TPS6594_IRQ_NAME_ENABLE),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_FSD, TPS6594_IRQ_NAME_FSD),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SOFT_REBOOT, TPS6594_IRQ_NAME_SOFT_REBOOT),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BIST_PASS, TPS6594_IRQ_NAME_BIST_PASS),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_EXT_CLK, TPS6594_IRQ_NAME_EXT_CLK),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TWARN, TPS6594_IRQ_NAME_TWARN),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TSD_ORD, TPS6594_IRQ_NAME_TSD_ORD),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BIST_FAIL, TPS6594_IRQ_NAME_BIST_FAIL),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_REG_CRC_ERR, TPS6594_IRQ_NAME_REG_CRC_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_RECOV_CNT, TPS6594_IRQ_NAME_RECOV_CNT),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SPMI_ERR, TPS6594_IRQ_NAME_SPMI_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NPWRON_LONG, TPS6594_IRQ_NAME_NPWRON_LONG),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NINT_READBACK, TPS6594_IRQ_NAME_NINT_READBACK),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NRSTOUT_READBACK, TPS6594_IRQ_NAME_NRSTOUT_READBACK),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TSD_IMM, TPS6594_IRQ_NAME_TSD_IMM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_OVP, TPS6594_IRQ_NAME_VCCA_OVP),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_PFSM_ERR, TPS6594_IRQ_NAME_PFSM_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_IMM_SHUTDOWN, TPS6594_IRQ_NAME_IMM_SHUTDOWN),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ORD_SHUTDOWN, TPS6594_IRQ_NAME_ORD_SHUTDOWN),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_MCU_PWR_ERR, TPS6594_IRQ_NAME_MCU_PWR_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SOC_PWR_ERR, TPS6594_IRQ_NAME_SOC_PWR_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_FRM_ERR, TPS6594_IRQ_NAME_COMM_FRM_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_CRC_ERR, TPS6594_IRQ_NAME_COMM_CRC_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_ADR_ERR, TPS6594_IRQ_NAME_COMM_ADR_ERR),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_EN_DRV_READBACK, TPS6594_IRQ_NAME_EN_DRV_READBACK),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NRSTOUT_SOC_READBACK,
+			     TPS6594_IRQ_NAME_NRSTOUT_SOC_READBACK),
+};
+
+static const struct resource tps6594_esm_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_PIN, TPS6594_IRQ_NAME_ESM_SOC_PIN),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_FAIL, TPS6594_IRQ_NAME_ESM_SOC_FAIL),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_RST, TPS6594_IRQ_NAME_ESM_SOC_RST),
+};
+
+static const struct resource tps6594_rtc_resources[] = {
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TIMER, TPS6594_IRQ_NAME_TIMER),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ALARM, TPS6594_IRQ_NAME_ALARM),
+	DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_POWER_UP, TPS6594_IRQ_NAME_POWERUP),
+};
+
+static const struct mfd_cell tps6594_common_cells[] = {
+	MFD_CELL_RES("tps6594-regulator", tps6594_regulator_resources),
+	MFD_CELL_RES("tps6594-pinctrl", tps6594_pinctrl_resources),
+	MFD_CELL_RES("tps6594-pfsm", tps6594_pfsm_resources),
+	MFD_CELL_RES("tps6594-esm", tps6594_esm_resources),
+};
+
+static const struct mfd_cell tps6594_rtc_cells[] = {
+	MFD_CELL_RES("tps6594-rtc", tps6594_rtc_resources),
+};
+
+static const struct regmap_irq tps6594_irqs[] = {
+	/* INT_BUCK1_2 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_OV, 0, TPS6594_BIT_BUCKX_OV_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_UV, 0, TPS6594_BIT_BUCKX_UV_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_SC, 0, TPS6594_BIT_BUCKX_SC_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_ILIM, 0, TPS6594_BIT_BUCKX_ILIM_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_OV, 0, TPS6594_BIT_BUCKX_OV_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_UV, 0, TPS6594_BIT_BUCKX_UV_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_SC, 0, TPS6594_BIT_BUCKX_SC_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_ILIM, 0, TPS6594_BIT_BUCKX_ILIM_INT(1)),
+
+	/* INT_BUCK3_4 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_OV, 1, TPS6594_BIT_BUCKX_OV_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_UV, 1, TPS6594_BIT_BUCKX_UV_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_SC, 1, TPS6594_BIT_BUCKX_SC_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_ILIM, 1, TPS6594_BIT_BUCKX_ILIM_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_OV, 1, TPS6594_BIT_BUCKX_OV_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_UV, 1, TPS6594_BIT_BUCKX_UV_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_SC, 1, TPS6594_BIT_BUCKX_SC_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_ILIM, 1, TPS6594_BIT_BUCKX_ILIM_INT(3)),
+
+	/* INT_BUCK5 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_OV, 2, TPS6594_BIT_BUCKX_OV_INT(4)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_UV, 2, TPS6594_BIT_BUCKX_UV_INT(4)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_SC, 2, TPS6594_BIT_BUCKX_SC_INT(4)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_ILIM, 2, TPS6594_BIT_BUCKX_ILIM_INT(4)),
+
+	/* INT_LDO1_2 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_OV, 3, TPS6594_BIT_LDOX_OV_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_UV, 3, TPS6594_BIT_LDOX_UV_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_SC, 3, TPS6594_BIT_LDOX_SC_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_ILIM, 3, TPS6594_BIT_LDOX_ILIM_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_OV, 3, TPS6594_BIT_LDOX_OV_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_UV, 3, TPS6594_BIT_LDOX_UV_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_SC, 3, TPS6594_BIT_LDOX_SC_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_ILIM, 3, TPS6594_BIT_LDOX_ILIM_INT(1)),
+
+	/* INT_LDO3_4 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_OV, 4, TPS6594_BIT_LDOX_OV_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_UV, 4, TPS6594_BIT_LDOX_UV_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_SC, 4, TPS6594_BIT_LDOX_SC_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_ILIM, 4, TPS6594_BIT_LDOX_ILIM_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_OV, 4, TPS6594_BIT_LDOX_OV_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_UV, 4, TPS6594_BIT_LDOX_UV_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_SC, 4, TPS6594_BIT_LDOX_SC_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_ILIM, 4, TPS6594_BIT_LDOX_ILIM_INT(3)),
+
+	/* INT_VMON register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_OV, 5, TPS6594_BIT_VCCA_OV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_UV, 5, TPS6594_BIT_VCCA_UV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_OV, 5, TPS6594_BIT_VMON1_OV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_UV, 5, TPS6594_BIT_VMON1_UV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_RV, 5, TPS6594_BIT_VMON1_RV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_OV, 5, TPS6594_BIT_VMON2_OV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_UV, 5, TPS6594_BIT_VMON2_UV_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_RV, 5, TPS6594_BIT_VMON2_RV_INT),
+
+	/* INT_GPIO register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO9, 6, TPS6594_BIT_GPIO9_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO10, 6, TPS6594_BIT_GPIO10_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO11, 6, TPS6594_BIT_GPIO11_INT),
+
+	/* INT_GPIO1_8 register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO1, 7, TPS6594_BIT_GPIOX_INT(0)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO2, 7, TPS6594_BIT_GPIOX_INT(1)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO3, 7, TPS6594_BIT_GPIOX_INT(2)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO4, 7, TPS6594_BIT_GPIOX_INT(3)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO5, 7, TPS6594_BIT_GPIOX_INT(4)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO6, 7, TPS6594_BIT_GPIOX_INT(5)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO7, 7, TPS6594_BIT_GPIOX_INT(6)),
+	REGMAP_IRQ_REG(TPS6594_IRQ_GPIO8, 7, TPS6594_BIT_GPIOX_INT(7)),
+
+	/* INT_STARTUP register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_NPWRON_START, 8, TPS6594_BIT_NPWRON_START_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_ENABLE, 8, TPS6594_BIT_ENABLE_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_FSD, 8, TPS6594_BIT_FSD_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_SOFT_REBOOT, 8, TPS6594_BIT_SOFT_REBOOT_INT),
+
+	/* INT_MISC register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_BIST_PASS, 9, TPS6594_BIT_BIST_PASS_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_EXT_CLK, 9, TPS6594_BIT_EXT_CLK_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_TWARN, 9, TPS6594_BIT_TWARN_INT),
+
+	/* INT_MODERATE_ERR register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_TSD_ORD, 10, TPS6594_BIT_TSD_ORD_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_BIST_FAIL, 10, TPS6594_BIT_BIST_FAIL_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_REG_CRC_ERR, 10, TPS6594_BIT_REG_CRC_ERR_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_RECOV_CNT, 10, TPS6594_BIT_RECOV_CNT_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_SPMI_ERR, 10, TPS6594_BIT_SPMI_ERR_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_NPWRON_LONG, 10, TPS6594_BIT_NPWRON_LONG_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_NINT_READBACK, 10, TPS6594_BIT_NINT_READBACK_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_NRSTOUT_READBACK, 10, TPS6594_BIT_NRSTOUT_READBACK_INT),
+
+	/* INT_SEVERE_ERR register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_TSD_IMM, 11, TPS6594_BIT_TSD_IMM_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_OVP, 11, TPS6594_BIT_VCCA_OVP_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_PFSM_ERR, 11, TPS6594_BIT_PFSM_ERR_INT),
+
+	/* INT_FSM_ERR register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_IMM_SHUTDOWN, 12, TPS6594_BIT_IMM_SHUTDOWN_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_ORD_SHUTDOWN, 12, TPS6594_BIT_ORD_SHUTDOWN_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_MCU_PWR_ERR, 12, TPS6594_BIT_MCU_PWR_ERR_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_SOC_PWR_ERR, 12, TPS6594_BIT_SOC_PWR_ERR_INT),
+
+	/* INT_COMM_ERR register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_COMM_FRM_ERR, 13, TPS6594_BIT_COMM_FRM_ERR_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_COMM_CRC_ERR, 13, TPS6594_BIT_COMM_CRC_ERR_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_COMM_ADR_ERR, 13, TPS6594_BIT_COMM_ADR_ERR_INT),
+
+	/* INT_READBACK_ERR register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_EN_DRV_READBACK, 14, TPS6594_BIT_EN_DRV_READBACK_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_NRSTOUT_SOC_READBACK, 14, TPS6594_BIT_NRSTOUT_SOC_READBACK_INT),
+
+	/* INT_ESM register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_PIN, 15, TPS6594_BIT_ESM_SOC_PIN_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_FAIL, 15, TPS6594_BIT_ESM_SOC_FAIL_INT),
+	REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_RST, 15, TPS6594_BIT_ESM_SOC_RST_INT),
+
+	/* RTC_STATUS register */
+	REGMAP_IRQ_REG(TPS6594_IRQ_TIMER, 16, TPS6594_BIT_TIMER),
+	REGMAP_IRQ_REG(TPS6594_IRQ_ALARM, 16, TPS6594_BIT_ALARM),
+	REGMAP_IRQ_REG(TPS6594_IRQ_POWER_UP, 16, TPS6594_BIT_POWER_UP),
+};
+
+static const unsigned int tps6594_irq_reg[] = {
+	TPS6594_REG_INT_BUCK1_2,
+	TPS6594_REG_INT_BUCK3_4,
+	TPS6594_REG_INT_BUCK5,
+	TPS6594_REG_INT_LDO1_2,
+	TPS6594_REG_INT_LDO3_4,
+	TPS6594_REG_INT_VMON,
+	TPS6594_REG_INT_GPIO,
+	TPS6594_REG_INT_GPIO1_8,
+	TPS6594_REG_INT_STARTUP,
+	TPS6594_REG_INT_MISC,
+	TPS6594_REG_INT_MODERATE_ERR,
+	TPS6594_REG_INT_SEVERE_ERR,
+	TPS6594_REG_INT_FSM_ERR,
+	TPS6594_REG_INT_COMM_ERR,
+	TPS6594_REG_INT_READBACK_ERR,
+	TPS6594_REG_INT_ESM,
+	TPS6594_REG_RTC_STATUS,
+};
+
+static inline unsigned int tps6594_get_irq_reg(struct regmap_irq_chip_data *data,
+					       unsigned int base, int index)
+{
+	return tps6594_irq_reg[index];
+};
+
+static int tps6594_handle_post_irq(void *irq_drv_data)
+{
+	struct tps6594 *tps = irq_drv_data;
+	int ret = 0;
+
+	/*
+	 * When CRC is enabled, writing to a read-only bit triggers an error,
+	 * and COMM_ADR_ERR_INT bit is set. Besides, bits indicating interrupts
+	 * (that must be cleared) and read-only bits are sometimes grouped in
+	 * the same register.
+	 * Since regmap clears interrupts by doing a write per register, clearing
+	 * an interrupt bit in a register containing also a read-only bit makes
+	 * COMM_ADR_ERR_INT bit set. Clear immediately this bit to avoid raising
+	 * a new interrupt.
+	 */
+	if (tps->use_crc)
+		ret = regmap_write_bits(tps->regmap, TPS6594_REG_INT_COMM_ERR,
+					TPS6594_BIT_COMM_ADR_ERR_INT,
+					TPS6594_BIT_COMM_ADR_ERR_INT);
+
+	return ret;
+};
+
+static struct regmap_irq_chip tps6594_irq_chip = {
+	.ack_base = TPS6594_REG_INT_BUCK1_2,
+	.ack_invert = 1,
+	.clear_ack = 1,
+	.init_ack_masked = 1,
+	.num_regs = ARRAY_SIZE(tps6594_irq_reg),
+	.irqs = tps6594_irqs,
+	.num_irqs = ARRAY_SIZE(tps6594_irqs),
+	.get_irq_reg = tps6594_get_irq_reg,
+	.handle_post_irq = tps6594_handle_post_irq,
+};
+
+bool tps6594_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	return (reg >= TPS6594_REG_INT_TOP && reg <= TPS6594_REG_STAT_READBACK_ERR) ||
+	       reg == TPS6594_REG_RTC_STATUS;
+}
+EXPORT_SYMBOL_GPL(tps6594_is_volatile_reg);
+
+static int tps6594_check_crc_mode(struct tps6594 *tps, bool primary_pmic)
+{
+	int ret;
+
+	/*
+	 * Check if CRC is enabled.
+	 * Once CRC is enabled, it can't be disabled until next power cycle.
+	 */
+	tps->use_crc = true;
+	ret = regmap_test_bits(tps->regmap, TPS6594_REG_SERIAL_IF_CONFIG,
+			       TPS6594_BIT_I2C1_SPI_CRC_EN);
+	if (ret == 0) {
+		ret = -EIO;
+	} else if (ret > 0) {
+		dev_info(tps->dev, "CRC feature enabled on %s PMIC",
+			 primary_pmic ? "primary" : "secondary");
+		ret = 0;
+	}
+
+	return ret;
+}
+
+static int tps6594_set_crc_feature(struct tps6594 *tps)
+{
+	int ret;
+
+	ret = tps6594_check_crc_mode(tps, true);
+	if (ret) {
+		/*
+		 * If CRC is not already enabled, force PFSM I2C_2 trigger to enable it
+		 * on primary PMIC.
+		 */
+		tps->use_crc = false;
+		ret = regmap_write_bits(tps->regmap, TPS6594_REG_FSM_I2C_TRIGGERS,
+					TPS6594_BIT_TRIGGER_I2C(2), TPS6594_BIT_TRIGGER_I2C(2));
+		if (ret)
+			return ret;
+
+		/*
+		 * Wait for PFSM to process trigger.
+		 * The datasheet indicates 2 ms, and clock specification is +/-5%.
+		 * 4 ms should provide sufficient margin.
+		 */
+		usleep_range(4000, 5000);
+
+		ret = tps6594_check_crc_mode(tps, true);
+	}
+
+	return ret;
+}
+
+static int tps6594_enable_crc(struct tps6594 *tps)
+{
+	struct device *dev = tps->dev;
+	unsigned int is_primary;
+	unsigned long timeout = msecs_to_jiffies(TPS6594_CRC_SYNC_TIMEOUT_MS);
+	int ret;
+
+	/*
+	 * CRC mode can be used with I2C or SPI protocols.
+	 * If this mode is specified for primary PMIC, it will also be applied to secondary PMICs
+	 * through SPMI serial interface.
+	 * In this multi-PMIC synchronization scheme, the primary PMIC is the controller device
+	 * on the SPMI bus, and the secondary PMICs are the target devices on the SPMI bus.
+	 */
+	is_primary = of_property_read_bool(dev->of_node, "ti,primary-pmic");
+	if (is_primary) {
+		/* Enable CRC feature on primary PMIC */
+		ret = tps6594_set_crc_feature(tps);
+		if (ret)
+			return ret;
+
+		/* Notify secondary PMICs that CRC feature is enabled */
+		complete_all(&tps6594_crc_comp);
+	} else {
+		/* Wait for CRC feature enabling event from primary PMIC */
+		ret = wait_for_completion_interruptible_timeout(&tps6594_crc_comp, timeout);
+		if (ret == 0)
+			ret = -ETIMEDOUT;
+		else if (ret > 0)
+			ret = tps6594_check_crc_mode(tps, false);
+	}
+
+	return ret;
+}
+
+int tps6594_device_init(struct tps6594 *tps, bool enable_crc)
+{
+	struct device *dev = tps->dev;
+	int ret;
+
+	if (enable_crc) {
+		ret = tps6594_enable_crc(tps);
+		if (ret)
+			return dev_err_probe(dev, ret, "Failed to enable CRC\n");
+	}
+
+	/* Keep PMIC in ACTIVE state */
+	ret = regmap_set_bits(tps->regmap, TPS6594_REG_FSM_NSLEEP_TRIGGERS,
+			      TPS6594_BIT_NSLEEP1B | TPS6594_BIT_NSLEEP2B);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to set PMIC state\n");
+
+	tps6594_irq_chip.irq_drv_data = tps;
+	tps6594_irq_chip.name = devm_kasprintf(dev, GFP_KERNEL, "%s-%ld-0x%02x",
+					       dev->driver->name, tps->chip_id, tps->reg);
+
+	ret = devm_regmap_add_irq_chip(dev, tps->regmap, tps->irq, IRQF_SHARED | IRQF_ONESHOT,
+				       0, &tps6594_irq_chip, &tps->irq_data);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to add regmap IRQ\n");
+
+	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, tps6594_common_cells,
+				   ARRAY_SIZE(tps6594_common_cells), NULL, 0,
+				   regmap_irq_get_domain(tps->irq_data));
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to add common child devices\n");
+
+	/* No RTC for LP8764 */
+	if (tps->chip_id != LP8764) {
+		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, tps6594_rtc_cells,
+					   ARRAY_SIZE(tps6594_rtc_cells), NULL, 0,
+					   regmap_irq_get_domain(tps->irq_data));
+		if (ret)
+			return dev_err_probe(dev, ret, "Failed to add RTC child device\n");
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tps6594_device_init);
+
+MODULE_AUTHOR("Julien Panis <[e-mail]>");
+MODULE_DESCRIPTION("TPS6594 Driver");
+MODULE_LICENSE("GPL");

drivers/mfd/tps6594-i2c.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * I2C access driver for TI TPS6594/TPS6593/LP8764 PMICs
+ *
+ * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#include <linux/crc8.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/tps6594.h>
+
+static bool enable_crc;
+module_param(enable_crc, bool, 0444);
+MODULE_PARM_DESC(enable_crc, "Enable CRC feature for I2C interface");
+
+DECLARE_CRC8_TABLE(tps6594_i2c_crc_table);
+
+static int tps6594_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+	int ret = i2c_transfer(adap, msgs, num);
+
+	if (ret == num)
+		return 0;
+	else if (ret < 0)
+		return ret;
+	else
+		return -EIO;
+}
+
+static int tps6594_i2c_reg_read_with_crc(struct i2c_client *client, u8 page, u8 reg, u8 *val)
+{
+	struct i2c_msg msgs[2];
+	u8 buf_rx[] = { 0, 0 };
+	/* I2C address = I2C base address + Page index */
+	const u8 addr = client->addr + page;
+	/*
+	 * CRC is calculated from every bit included in the protocol
+	 * except the ACK bits from the target. Byte stream is:
+	 * - B0: (I2C_addr_7bits << 1) | WR_bit, with WR_bit = 0
+	 * - B1: reg
+	 * - B2: (I2C_addr_7bits << 1) | RD_bit, with RD_bit = 1
+	 * - B3: val
+	 * - B4: CRC from B0-B1-B2-B3
+	 */
+	u8 crc_data[] = { addr << 1, reg, addr << 1 | 1, 0 };
+	int ret;
+
+	/* Write register */
+	msgs[0].addr = addr;
+	msgs[0].flags = 0;
+	msgs[0].len = 1;
+	msgs[0].buf = &reg;
+
+	/* Read data and CRC */
+	msgs[1].addr = msgs[0].addr;
+	msgs[1].flags = I2C_M_RD;
+	msgs[1].len = 2;
+	msgs[1].buf = buf_rx;
+
+	ret = tps6594_i2c_transfer(client->adapter, msgs, 2);
+	if (ret < 0)
+		return ret;
+
+	crc_data[sizeof(crc_data) - 1] = *val = buf_rx[0];
+	if (buf_rx[1] != crc8(tps6594_i2c_crc_table, crc_data, sizeof(crc_data), CRC8_INIT_VALUE))
+		return -EIO;
+
+	return ret;
+}
+
+static int tps6594_i2c_reg_write_with_crc(struct i2c_client *client, u8 page, u8 reg, u8 val)
+{
+	struct i2c_msg msg;
+	u8 buf[] = { reg, val, 0 };
+	/* I2C address = I2C base address + Page index */
+	const u8 addr = client->addr + page;
+	/*
+	 * CRC is calculated from every bit included in the protocol
+	 * except the ACK bits from the target. Byte stream is:
+	 * - B0: (I2C_addr_7bits << 1) | WR_bit, with WR_bit = 0
+	 * - B1: reg
+	 * - B2: val
+	 * - B3: CRC from B0-B1-B2
+	 */
+	const u8 crc_data[] = { addr << 1, reg, val };
+
+	/* Write register, data and CRC */
+	msg.addr = addr;
+	msg.flags = client->flags & I2C_M_TEN;
+	msg.len = sizeof(buf);
+	msg.buf = buf;
+
+	buf[msg.len - 1] = crc8(tps6594_i2c_crc_table, crc_data, sizeof(crc_data), CRC8_INIT_VALUE);
+
+	return tps6594_i2c_transfer(client->adapter, &msg, 1);
+}
+
+static int tps6594_i2c_read(void *context, const void *reg_buf, size_t reg_size,
+			    void *val_buf, size_t val_size)
+{
+	struct i2c_client *client = context;
+	struct tps6594 *tps = i2c_get_clientdata(client);
+	struct i2c_msg msgs[2];
+	const u8 *reg_bytes = reg_buf;
+	u8 *val_bytes = val_buf;
+	const u8 page = reg_bytes[1];
+	u8 reg = reg_bytes[0];
+	int ret = 0;
+	int i;
+
+	if (tps->use_crc) {
+		/*
+		 * Auto-increment feature does not support CRC protocol.
+		 * Converts the bulk read operation into a series of single read operations.
+		 */
+		for (i = 0 ; ret == 0 && i < val_size ; i++)
+			ret = tps6594_i2c_reg_read_with_crc(client, page, reg + i, val_bytes + i);
+
+		return ret;
+	}
+
+	/* Write register: I2C address = I2C base address + Page index */
+	msgs[0].addr = client->addr + page;
+	msgs[0].flags = 0;
+	msgs[0].len = 1;
+	msgs[0].buf = &reg;
+
+	/* Read data */
+	msgs[1].addr = msgs[0].addr;
+	msgs[1].flags = I2C_M_RD;
+	msgs[1].len = val_size;
+	msgs[1].buf = val_bytes;
+
+	return tps6594_i2c_transfer(client->adapter, msgs, 2);
+}
+
+static int tps6594_i2c_write(void *context, const void *data, size_t count)
+{
+	struct i2c_client *client = context;
+	struct tps6594 *tps = i2c_get_clientdata(client);
+	struct i2c_msg msg;
+	const u8 *bytes = data;
+	u8 *buf;
+	const u8 page = bytes[1];
+	const u8 reg = bytes[0];
+	int ret = 0;
+	int i;
+
+	if (tps->use_crc) {
+		/*
+		 * Auto-increment feature does not support CRC protocol.
+		 * Converts the bulk write operation into a series of single write operations.
+		 */
+		for (i = 0 ; ret == 0 && i < count - 2 ; i++)
+			ret = tps6594_i2c_reg_write_with_crc(client, page, reg + i, bytes[i + 2]);
+
+		return ret;
+	}
+
+	/* Setup buffer: page byte is not sent */
+	buf = kzalloc(--count, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = reg;
+	for (i = 0 ; i < count - 1 ; i++)
+		buf[i + 1] = bytes[i + 2];
+
+	/* Write register and data: I2C address = I2C base address + Page index */
+	msg.addr = client->addr + page;
+	msg.flags = client->flags & I2C_M_TEN;
+	msg.len = count;
+	msg.buf = buf;
+
+	ret = tps6594_i2c_transfer(client->adapter, &msg, 1);
+
+	kfree(buf);
+	return ret;
+}
+
+static const struct regmap_config tps6594_i2c_regmap_config = {
+	.reg_bits = 16,
+	.val_bits = 8,
+	.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
+	.volatile_reg = tps6594_is_volatile_reg,
+	.read = tps6594_i2c_read,
+	.write = tps6594_i2c_write,
+};
+
+static const struct of_device_id tps6594_i2c_of_match_table[] = {
+	{ .compatible = "ti,tps6594-q1", .data = (void *)TPS6594, },
+	{ .compatible = "ti,tps6593-q1", .data = (void *)TPS6593, },
+	{ .compatible = "ti,lp8764-q1",  .data = (void *)LP8764,  },
+	{}
+};
+MODULE_DEVICE_TABLE(of, tps6594_i2c_of_match_table);
+
+static int tps6594_i2c_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct tps6594 *tps;
+	const struct of_device_id *match;
+
+	tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
+	if (!tps)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, tps);
+
+	tps->dev = dev;
+	tps->reg = client->addr;
+	tps->irq = client->irq;
+
+	tps->regmap = devm_regmap_init(dev, NULL, client, &tps6594_i2c_regmap_config);
+	if (IS_ERR(tps->regmap))
+		return dev_err_probe(dev, PTR_ERR(tps->regmap), "Failed to init regmap\n");
+
+	match = of_match_device(tps6594_i2c_of_match_table, dev);
+	if (!match)
+		return dev_err_probe(dev, PTR_ERR(match), "Failed to find matching chip ID\n");
+	tps->chip_id = (unsigned long)match->data;
+
+	crc8_populate_msb(tps6594_i2c_crc_table, TPS6594_CRC8_POLYNOMIAL);
+
+	return tps6594_device_init(tps, enable_crc);
+}
+
+static struct i2c_driver tps6594_i2c_driver = {
+	.driver	= {
+		.name = "tps6594",
+		.of_match_table = tps6594_i2c_of_match_table,
+	},
+	.probe_new = tps6594_i2c_probe,
+};
+module_i2c_driver(tps6594_i2c_driver);
+
+MODULE_AUTHOR("Julien Panis <[e-mail]>");
+MODULE_DESCRIPTION("TPS6594 I2C Interface Driver");
+MODULE_LICENSE("GPL");

drivers/mfd/tps6594-spi.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SPI access driver for TI TPS6594/TPS6593/LP8764 PMICs
+ *
+ * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#include <linux/crc8.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include <linux/mfd/tps6594.h>
+
+#define TPS6594_SPI_PAGE_SHIFT	5
+#define TPS6594_SPI_READ_BIT	BIT(4)
+
+static bool enable_crc;
+module_param(enable_crc, bool, 0444);
+MODULE_PARM_DESC(enable_crc, "Enable CRC feature for SPI interface");
+
+DECLARE_CRC8_TABLE(tps6594_spi_crc_table);
+
+static int tps6594_spi_reg_read(void *context, unsigned int reg, unsigned int *val)
+{
+	struct spi_device *spi = context;
+	struct tps6594 *tps = spi_get_drvdata(spi);
+	u8 buf[4] = { 0 };
+	size_t count_rx = 1;
+	int ret;
+
+	buf[0] = reg;
+	buf[1] = TPS6594_REG_TO_PAGE(reg) << TPS6594_SPI_PAGE_SHIFT | TPS6594_SPI_READ_BIT;
+
+	if (tps->use_crc)
+		count_rx++;
+
+	ret = spi_write_then_read(spi, buf, 2, buf + 2, count_rx);
+	if (ret < 0)
+		return ret;
+
+	if (tps->use_crc && buf[3] != crc8(tps6594_spi_crc_table, buf, 3, CRC8_INIT_VALUE))
+		return -EIO;
+
+	*val = buf[2];
+
+	return 0;
+}
+
+static int tps6594_spi_reg_write(void *context, unsigned int reg, unsigned int val)
+{
+	struct spi_device *spi = context;
+	struct tps6594 *tps = spi_get_drvdata(spi);
+	u8 buf[4] = { 0 };
+	size_t count = 3;
+
+	buf[0] = reg;
+	buf[1] = TPS6594_REG_TO_PAGE(reg) << TPS6594_SPI_PAGE_SHIFT;
+	buf[2] = val;
+
+	if (tps->use_crc)
+		buf[3] = crc8(tps6594_spi_crc_table, buf, count++, CRC8_INIT_VALUE);
+
+	return spi_write(spi, buf, count);
+}
+
+static const struct regmap_config tps6594_spi_regmap_config = {
+	.reg_bits = 16,
+	.val_bits = 8,
+	.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
+	.volatile_reg = tps6594_is_volatile_reg,
+	.reg_read = tps6594_spi_reg_read,
+	.reg_write = tps6594_spi_reg_write,
+	.use_single_read = true,
+	.use_single_write = true,
+};
+
+static const struct of_device_id tps6594_spi_of_match_table[] = {
+	{ .compatible = "ti,tps6594-q1", .data = (void *)TPS6594, },
+	{ .compatible = "ti,tps6593-q1", .data = (void *)TPS6593, },
+	{ .compatible = "ti,lp8764-q1",  .data = (void *)LP8764,  },
+	{}
+};
+MODULE_DEVICE_TABLE(of, tps6594_spi_of_match_table);
+
+static int tps6594_spi_probe(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct tps6594 *tps;
+	const struct of_device_id *match;
+
+	tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
+	if (!tps)
+		return -ENOMEM;
+
+	spi_set_drvdata(spi, tps);
+
+	tps->dev = dev;
+	tps->reg = spi->chip_select;
+	tps->irq = spi->irq;
+
+	tps->regmap = devm_regmap_init(dev, NULL, spi, &tps6594_spi_regmap_config);
+	if (IS_ERR(tps->regmap))
+		return dev_err_probe(dev, PTR_ERR(tps->regmap), "Failed to init regmap\n");
+
+	match = of_match_device(tps6594_spi_of_match_table, dev);
+	if (!match)
+		return dev_err_probe(dev, PTR_ERR(match), "Failed to find matching chip ID\n");
+	tps->chip_id = (unsigned long)match->data;
+
+	crc8_populate_msb(tps6594_spi_crc_table, TPS6594_CRC8_POLYNOMIAL);
+
+	return tps6594_device_init(tps, enable_crc);
+}
+
+static struct spi_driver tps6594_spi_driver = {
+	.driver	= {
+		.name = "tps6594",
+		.of_match_table = tps6594_spi_of_match_table,
+	},
+	.probe = tps6594_spi_probe,
+};
+module_spi_driver(tps6594_spi_driver);
+
+MODULE_AUTHOR("Julien Panis <[e-mail]>");
+MODULE_DESCRIPTION("TPS6594 SPI Interface Driver");
+MODULE_LICENSE("GPL");

drivers/regulator/Kconfig

···
 	  voltage regulators. It supports software based voltage control
 	  for different voltage domains.
 
+config REGULATOR_TPS6594
+	tristate "TI TPS6594 Power regulators"
+	depends on MFD_TPS6594 && OF
+	default MFD_TPS6594
+	help
+	  This driver supports TPS6594 voltage regulator chips.
+	  TPS6594 series of PMICs have 5 BUCKs and 4 LDOs
+	  voltage regulators.
+	  BUCKs 1,2,3,4 can be used in single phase or multiphase mode.
+	  Part number defines which single or multiphase mode is i used.
+	  It supports software based voltage control
+	  for different voltage domains.
+
 config REGULATOR_TPS6524X
 	tristate "TI TPS6524X Power regulators"
 	depends on SPI

drivers/regulator/Makefile

···
 obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
+obj-$(CONFIG_REGULATOR_TPS6594) += tps6594-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65132) += tps65132-regulator.o
 obj-$(CONFIG_REGULATOR_TPS68470) += tps68470-regulator.o
 obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o twl6030-regulator.o

drivers/regulator/tps6594-regulator.c

···
+// SPDX-License-Identifier: GPL-2.0
+//
+// Regulator driver for tps6594 PMIC
+//
+// Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+
+#include <linux/mfd/tps6594.h>
+
+#define BUCK_NB		5
+#define LDO_NB		4
+#define MULTI_PHASE_NB	4
+#define REGS_INT_NB	4
+
+enum tps6594_regulator_id {
+	/* DCDC's */
+	TPS6594_BUCK_1,
+	TPS6594_BUCK_2,
+	TPS6594_BUCK_3,
+	TPS6594_BUCK_4,
+	TPS6594_BUCK_5,
+
+	/* LDOs */
+	TPS6594_LDO_1,
+	TPS6594_LDO_2,
+	TPS6594_LDO_3,
+	TPS6594_LDO_4,
+};
+
+enum tps6594_multi_regulator_id {
+	/* Multi-phase DCDC's */
+	TPS6594_BUCK_12,
+	TPS6594_BUCK_34,
+	TPS6594_BUCK_123,
+	TPS6594_BUCK_1234,
+};
+
+struct tps6594_regulator_irq_type {
+	const char *irq_name;
+	const char *regulator_name;
+	const char *event_name;
+	unsigned long event;
+};
+
+static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
+	{ TPS6594_IRQ_NAME_VCCA_OV, "VCCA", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_VCCA_UV, "VCCA", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_VMON1_OV, "VMON1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_VMON1_UV, "VMON1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_VMON1_RV, "VMON1", "residual voltage",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_VMON2_OV, "VMON2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_VMON2_UV, "VMON2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_VMON2_RV, "VMON2", "residual voltage",
+	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+};
+
+struct tps6594_regulator_irq_data {
+	struct device *dev;
+	struct tps6594_regulator_irq_type *type;
+	struct regulator_dev *rdev;
+};
+
+struct tps6594_ext_regulator_irq_data {
+	struct device *dev;
+	struct tps6594_regulator_irq_type *type;
+};
+
+#define TPS6594_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
+			   _em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
+			   _ct, _ncl, _bpm) \
+	{								\
+		.name			= _name,			\
+		.of_match		= _of,				\
+		.regulators_node	= of_match_ptr("regulators"),	\
+		.supply_name		= _of,				\
+		.id			= _id,				\
+		.ops			= &(_ops),			\
+		.n_voltages		= _n,				\
+		.type			= _type,			\
+		.owner			= THIS_MODULE,			\
+		.vsel_reg		= _vr,				\
+		.vsel_mask		= _vm,				\
+		.csel_reg		= _cr,				\
+		.csel_mask		= _cm,				\
+		.curr_table		= _ct,				\
+		.n_current_limits	= _ncl,				\
+		.enable_reg		= _er,				\
+		.enable_mask		= _em,				\
+		.volt_table		= NULL,				\
+		.linear_ranges		= _lr,				\
+		.n_linear_ranges	= _nlr,				\
+		.ramp_delay		= _delay,			\
+		.fixed_uV		= _fuv,				\
+		.bypass_reg		= _vr,				\
+		.bypass_mask		= _bpm,				\
+	}								\
+
+static const struct linear_range bucks_ranges[] = {
+	REGULATOR_LINEAR_RANGE(300000, 0x0, 0xe, 20000),
+	REGULATOR_LINEAR_RANGE(600000, 0xf, 0x72, 5000),
+	REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),
+	REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xff, 20000),
+};
+
+static const struct linear_range ldos_1_2_3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x4, 0x3a, 50000),
+};
+
+static const struct linear_range ldos_4_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1200000, 0x20, 0x74, 25000),
+};
+
+/* Operations permitted on BUCK1/2/3/4/5 */
+static const struct regulator_ops tps6594_bucks_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+};
+
+/* Operations permitted on LDO1/2/3 */
+static const struct regulator_ops tps6594_ldos_1_2_3_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.set_bypass		= regulator_set_bypass_regmap,
+	.get_bypass		= regulator_get_bypass_regmap,
+};
+
+/* Operations permitted on LDO4 */
+static const struct regulator_ops tps6594_ldos_4_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_desc buck_regs[] = {
+	TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(0),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(0),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(2),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(2),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(3),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(3),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK5", "buck5", TPS6594_BUCK_5,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(4),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(4),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+};
+
+static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
+	{ TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_BUCK1_SC, "BUCK1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_BUCK1_ILIM, "BUCK1", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_buck2_irq_types[] = {
+	{ TPS6594_IRQ_NAME_BUCK2_OV, "BUCK2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_BUCK2_UV, "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_BUCK2_SC, "BUCK2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_BUCK2_ILIM, "BUCK2", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_buck3_irq_types[] = {
+	{ TPS6594_IRQ_NAME_BUCK3_OV, "BUCK3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_BUCK3_UV, "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_BUCK3_SC, "BUCK3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_BUCK3_ILIM, "BUCK3", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_buck4_irq_types[] = {
+	{ TPS6594_IRQ_NAME_BUCK4_OV, "BUCK4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_BUCK4_UV, "BUCK4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_BUCK4_SC, "BUCK4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_BUCK4_ILIM, "BUCK4", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_buck5_irq_types[] = {
+	{ TPS6594_IRQ_NAME_BUCK5_OV, "BUCK5", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_BUCK5_UV, "BUCK5", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_BUCK5_SC, "BUCK5", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_BUCK5_ILIM, "BUCK5", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_ldo1_irq_types[] = {
+	{ TPS6594_IRQ_NAME_LDO1_OV, "LDO1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_LDO1_UV, "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_LDO1_SC, "LDO1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_LDO1_ILIM, "LDO1", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_ldo2_irq_types[] = {
+	{ TPS6594_IRQ_NAME_LDO2_OV, "LDO2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_LDO2_UV, "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_LDO2_SC, "LDO2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_LDO2_ILIM, "LDO2", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_ldo3_irq_types[] = {
+	{ TPS6594_IRQ_NAME_LDO3_OV, "LDO3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_LDO3_UV, "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_LDO3_SC, "LDO3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_LDO3_ILIM, "LDO3", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
+	{ TPS6594_IRQ_NAME_LDO4_OV, "LDO4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
+	{ TPS6594_IRQ_NAME_LDO4_UV, "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
+	{ TPS6594_IRQ_NAME_LDO4_SC, "LDO4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
+	{ TPS6594_IRQ_NAME_LDO4_ILIM, "LDO4", "reach ilim, overcurrent",
+	  REGULATOR_EVENT_OVER_CURRENT },
+};
+
+static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
+	tps6594_buck1_irq_types,
+	tps6594_buck2_irq_types,
+	tps6594_buck3_irq_types,
+	tps6594_buck4_irq_types,
+	tps6594_buck5_irq_types,
+};
+
+static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
+	tps6594_ldo1_irq_types,
+	tps6594_ldo2_irq_types,
+	tps6594_ldo3_irq_types,
+	tps6594_ldo4_irq_types,
+};
+
+static const struct regulator_desc multi_regs[] = {
+	TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 4000, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK34", "buck34", TPS6594_BUCK_3,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(3),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(3),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 0, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK123", "buck123", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 4000, 0, NULL, 0, 0),
+	TPS6594_REGULATOR("BUCK1234", "buck1234", TPS6594_BUCK_1,
+			  REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_VOUT_1(1),
+			  TPS6594_MASK_BUCKS_VSET,
+			  TPS6594_REG_BUCKX_CTRL(1),
+			  TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
+			  4, 4000, 0, NULL, 0, 0),
+};
+
+static const struct regulator_desc ldo_regs[] = {
+	TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(0),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(0),
+			  TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(1),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(1),
+			  TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,
+			  REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_VOUT(2),
+			  TPS6594_MASK_LDO123_VSET,
+			  TPS6594_REG_LDOX_CTRL(2),
+			  TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
+			  1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
+	TPS6594_REGULATOR("LDO4", "ldo4", TPS6594_LDO_4,
+			  REGULATOR_VOLTAGE, tps6594_ldos_4_ops, TPS6594_MASK_LDO4_VSET >> 1,
+			  TPS6594_REG_LDOX_VOUT(3),
+			  TPS6594_MASK_LDO4_VSET,
+			  TPS6594_REG_LDOX_CTRL(3),
+			  TPS6594_BIT_LDO_EN, 0, 0, ldos_4_ranges,
+			  1, 0, 0, NULL, 0, 0),
+};
+
+static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)
+{
+	struct tps6594_regulator_irq_data *irq_data = data;
+
+	if (irq_data->type->event_name[0] == '\0') {
+		/* This is the timeout interrupt no specific regulator */
+		dev_err(irq_data->dev,
+			"System was put in shutdown due to timeout during an active or standby transition.\n");
+		return IRQ_HANDLED;
+	}
+
+	dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
+		irq_data->type->event_name, irq_data->type->regulator_name);
+
+	regulator_notifier_call_chain(irq_data->rdev,
+				      irq_data->type->event, NULL);
+
+	return IRQ_HANDLED;
+}
+
+static int tps6594_request_reg_irqs(struct platform_device *pdev,
+				    struct regulator_dev *rdev,
+				    struct tps6594_regulator_irq_data *irq_data,
+				    struct tps6594_regulator_irq_type *tps6594_regs_irq_types,
+				    int *irq_idx)
+{
+	struct tps6594_regulator_irq_type *irq_type;
+	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
+	int j;
+	int irq;
+	int error;
+
+	for (j = 0; j < REGS_INT_NB; j++) {
+		irq_type = &tps6594_regs_irq_types[j];
+		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
+		if (irq < 0)
+			return -EINVAL;
+
+		irq_data[*irq_idx + j].dev = tps->dev;
+		irq_data[*irq_idx + j].type = irq_type;
+		irq_data[*irq_idx + j].rdev = rdev;
+
+		error = devm_request_threaded_irq(tps->dev, irq, NULL,
+						  tps6594_regulator_irq_handler,
+						  IRQF_ONESHOT,
+						  irq_type->irq_name,
+						  &irq_data[*irq_idx]);
+		(*irq_idx)++;
+		if (error) {
+			dev_err(tps->dev, "tps6594 failed to request %s IRQ %d: %d\n",
+				irq_type->irq_name, irq, error);
+			return error;
+		}
+	}
+	return 0;
+}
+
+static int tps6594_regulator_probe(struct platform_device *pdev)
+{
+	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_dev *rdev;
+	struct device_node *np = NULL;
+	struct device_node *np_pmic_parent = NULL;
+	struct regulator_config config = {};
+	struct tps6594_regulator_irq_data *irq_data;
+	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
+	struct tps6594_regulator_irq_type *irq_type;
+	u8 buck_configured[BUCK_NB] = { 0 };
+	u8 buck_multi[MULTI_PHASE_NB] = { 0 };
+	static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};
+	static const char *npname;
+	int error, i, irq, multi, delta;
+	int irq_idx = 0;
+	int buck_idx = 0;
+	int ext_reg_irq_nb = 2;
+
+	enum {
+		MULTI_BUCK12,
+		MULTI_BUCK123,
+		MULTI_BUCK1234,
+		MULTI_BUCK12_34,
+		MULTI_FIRST = MULTI_BUCK12,
+		MULTI_LAST = MULTI_BUCK12_34,
+		MULTI_NUM = MULTI_LAST - MULTI_FIRST + 1
+	};
+
+	config.dev = tps->dev;
+	config.driver_data = tps;
+	config.regmap = tps->regmap;
+
+	/*
+	 * Switch case defines different possible multi phase config
+	 * This is based on dts buck node name.
+	 * Buck node name must be chosen accordingly.
+	 * Default case is no Multiphase buck.
+	 * In case of Multiphase configuration, value should be defined for
+	 * buck_configured to avoid creating bucks for every buck in multiphase
+	 */
+	for (multi = MULTI_FIRST; multi < MULTI_NUM; multi++) {
+		np = of_find_node_by_name(tps->dev->of_node, multiphases[multi]);
+		npname = of_node_full_name(np);
+		np_pmic_parent = of_get_parent(of_get_parent(np));
+		if (of_node_cmp(of_node_full_name(np_pmic_parent), tps->dev->of_node->full_name))
+			continue;
+		delta = strcmp(npname, multiphases[multi]);
+		if (!delta) {
+			switch (multi) {
+			case MULTI_BUCK12:
+				buck_multi[0] = 1;
+				buck_configured[0] = 1;
+				buck_configured[1] = 1;
+				break;
+			/* multiphase buck34 is supported only with buck12 */
+			case MULTI_BUCK12_34:
+				buck_multi[0] = 1;
+				buck_multi[1] = 1;
+				buck_configured[0] = 1;
+				buck_configured[1] = 1;
+				buck_configured[2] = 1;
+				buck_configured[3] = 1;
+				break;
+			case MULTI_BUCK123:
+				buck_multi[2] = 1;
+				buck_configured[0] = 1;
+				buck_configured[1] = 1;
+				buck_configured[2] = 1;
+				break;
+			case MULTI_BUCK1234:
+				buck_multi[3] = 1;
+				buck_configured[0] = 1;
+				buck_configured[1] = 1;
+				buck_configured[2] = 1;
+				buck_configured[3] = 1;
+				break;
+			}
+		}
+	}
+
+	if (tps->chip_id == LP8764)
+		/* There is only 4 buck on LP8764 */
+		buck_configured[4] = 1;
+
+	irq_data = devm_kmalloc_array(tps->dev,
+				REGS_INT_NB * sizeof(struct tps6594_regulator_irq_data),
+				ARRAY_SIZE(tps6594_bucks_irq_types) +
+				ARRAY_SIZE(tps6594_ldos_irq_types),
+				GFP_KERNEL);
+	if (!irq_data)
+		return -ENOMEM;
+
+	for (i = 0; i < MULTI_PHASE_NB; i++) {
+		if (buck_multi[i] == 0)
+			continue;
+
+		rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
+		if (IS_ERR(rdev))
+			return dev_err_probe(tps->dev, PTR_ERR(rdev),
+					     "failed to register %s regulator\n",
+					     pdev->name);
+
+		/* config multiphase buck12+buck34 */
+		if (i == 1)
+			buck_idx = 2;
+		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+						 tps6594_bucks_irq_types[buck_idx], &irq_idx);
+		if (error)
+			return error;
+		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+						 tps6594_bucks_irq_types[buck_idx + 1], &irq_idx);
+		if (error)
+			return error;
+
+		if (i == 2 || i == 3) {
+			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+							 tps6594_bucks_irq_types[buck_idx + 2],
+							 &irq_idx);
+			if (error)
+				return error;
+		}
+		if (i == 3) {
+			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+							 tps6594_bucks_irq_types[buck_idx + 3],
+							 &irq_idx);
+			if (error)
+				return error;
+		}
+	}
+
+	for (i = 0; i < BUCK_NB; i++) {
+		if (buck_configured[i] == 1)
+			continue;
+
+		rdev = devm_regulator_register(&pdev->dev, &buck_regs[i], &config);
+		if (IS_ERR(rdev))
+			return dev_err_probe(tps->dev, PTR_ERR(rdev),
+					     "failed to register %s regulator\n",
+					     pdev->name);
+
+		error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+						 tps6594_bucks_irq_types[i], &irq_idx);
+		if (error)
+			return error;
+	}
+
+	/* LP8764 dosen't have LDO */
+	if (tps->chip_id != LP8764) {
+		for (i = 0; i < ARRAY_SIZE(ldo_regs); i++) {
+			rdev = devm_regulator_register(&pdev->dev, &ldo_regs[i], &config);
+			if (IS_ERR(rdev))
+				return dev_err_probe(tps->dev, PTR_ERR(rdev),
+						     "failed to register %s regulator\n",
+						     pdev->name);
+
+			error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
+							 tps6594_ldos_irq_types[i],
+							 &irq_idx);
+			if (error)
+				return error;
+		}
+	}
+
+	if (tps->chip_id == LP8764)
+		ext_reg_irq_nb = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
+
+	irq_ext_reg_data = devm_kmalloc_array(tps->dev,
+					ext_reg_irq_nb,
+					sizeof(struct tps6594_ext_regulator_irq_data),
+					GFP_KERNEL);
+	if (!irq_ext_reg_data)
+		return -ENOMEM;
+
+	for (i = 0; i < ext_reg_irq_nb; ++i) {
+		irq_type = &tps6594_ext_regulator_irq_types[i];
+
+		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
+		if (irq < 0)
+			return -EINVAL;
+
+		irq_ext_reg_data[i].dev = tps->dev;
+		irq_ext_reg_data[i].type = irq_type;
+
+		error = devm_request_threaded_irq(tps->dev, irq, NULL,
+						  tps6594_regulator_irq_handler,
+						  IRQF_ONESHOT,
+						  irq_type->irq_name,
+						  &irq_ext_reg_data[i]);
+		if (error)
+			return dev_err_probe(tps->dev, error,
+					     "failed to request %s IRQ %d\n",
+					     irq_type->irq_name, irq);
+	}
+	return 0;
+}
+
+static struct platform_driver tps6594_regulator_driver = {
+	.driver = {
+		.name = "tps6594-regulator",
+	},
+	.probe = tps6594_regulator_probe,
+};
+
+module_platform_driver(tps6594_regulator_driver);
+
+MODULE_ALIAS("platform:tps6594-regulator");
+MODULE_AUTHOR("Jerome Neanne <[e-mail]>");
+MODULE_DESCRIPTION("TPS6594 voltage regulator driver");
+MODULE_LICENSE("GPL");

include/linux/mfd/tps6594.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Functions to access TPS6594 Power Management IC
+ *
+ * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#ifndef __LINUX_MFD_TPS6594_H
+#define __LINUX_MFD_TPS6594_H
+
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+struct regmap_irq_chip_data;
+
+/* Chip id list */
+enum pmic_id {
+	TPS6594,
+	TPS6593,
+	LP8764,
+};
+
+/* Macro to get page index from register address */
+#define TPS6594_REG_TO_PAGE(reg)	((reg) >> 8)
+
+/* Registers for page 0 of TPS6594 */
+#define TPS6594_REG_DEV_REV				0x01
+
+#define TPS6594_REG_NVM_CODE_1				0x02
+#define TPS6594_REG_NVM_CODE_2				0x03
+
+#define TPS6594_REG_BUCKX_CTRL(buck_inst)		(0x04 + ((buck_inst) << 1))
+#define TPS6594_REG_BUCKX_CONF(buck_inst)		(0x05 + ((buck_inst) << 1))
+#define TPS6594_REG_BUCKX_VOUT_1(buck_inst)		(0x0e + ((buck_inst) << 1))
+#define TPS6594_REG_BUCKX_VOUT_2(buck_inst)		(0x0f + ((buck_inst) << 1))
+#define TPS6594_REG_BUCKX_PG_WINDOW(buck_inst)		(0x18 + (buck_inst))
+
+#define TPS6594_REG_LDOX_CTRL(ldo_inst)			(0x1d + (ldo_inst))
+#define TPS6594_REG_LDORTC_CTRL				0x22
+#define TPS6594_REG_LDOX_VOUT(ldo_inst)			(0x23 + (ldo_inst))
+#define TPS6594_REG_LDOX_PG_WINDOW(ldo_inst)		(0x27 + (ldo_inst))
+
+#define TPS6594_REG_VCCA_VMON_CTRL			0x2b
+#define TPS6594_REG_VCCA_PG_WINDOW			0x2c
+#define TPS6594_REG_VMON1_PG_WINDOW			0x2d
+#define TPS6594_REG_VMON1_PG_LEVEL			0x2e
+#define TPS6594_REG_VMON2_PG_WINDOW			0x2f
+#define TPS6594_REG_VMON2_PG_LEVEL			0x30
+
+#define TPS6594_REG_GPIOX_CONF(gpio_inst)		(0x31 + (gpio_inst))
+#define TPS6594_REG_NPWRON_CONF				0x3c
+#define TPS6594_REG_GPIO_OUT_1				0x3d
+#define TPS6594_REG_GPIO_OUT_2				0x3e
+#define TPS6594_REG_GPIO_IN_1				0x3f
+#define TPS6594_REG_GPIO_IN_2				0x40
+#define TPS6594_REG_GPIOX_OUT(gpio_inst)		(TPS6594_REG_GPIO_OUT_1 + (gpio_inst) / 8)
+#define TPS6594_REG_GPIOX_IN(gpio_inst)			(TPS6594_REG_GPIO_IN_1 + (gpio_inst) / 8)
+
+#define TPS6594_REG_GPIO_IN_1				0x3f
+#define TPS6594_REG_GPIO_IN_2				0x40
+
+#define TPS6594_REG_RAIL_SEL_1				0x41
+#define TPS6594_REG_RAIL_SEL_2				0x42
+#define TPS6594_REG_RAIL_SEL_3				0x43
+
+#define TPS6594_REG_FSM_TRIG_SEL_1			0x44
+#define TPS6594_REG_FSM_TRIG_SEL_2			0x45
+#define TPS6594_REG_FSM_TRIG_MASK_1			0x46
+#define TPS6594_REG_FSM_TRIG_MASK_2			0x47
+#define TPS6594_REG_FSM_TRIG_MASK_3			0x48
+
+#define TPS6594_REG_MASK_BUCK1_2			0x49
+#define TPS6594_REG_MASK_BUCK3_4			0x4a
+#define TPS6594_REG_MASK_BUCK5				0x4b
+#define TPS6594_REG_MASK_LDO1_2				0x4c
+#define TPS6594_REG_MASK_LDO3_4				0x4d
+#define TPS6594_REG_MASK_VMON				0x4e
+#define TPS6594_REG_MASK_GPIO1_8_FALL			0x4f
+#define TPS6594_REG_MASK_GPIO1_8_RISE			0x50
+#define TPS6594_REG_MASK_GPIO9_11			0x51
+#define TPS6594_REG_MASK_STARTUP			0x52
+#define TPS6594_REG_MASK_MISC				0x53
+#define TPS6594_REG_MASK_MODERATE_ERR			0x54
+#define TPS6594_REG_MASK_FSM_ERR			0x56
+#define TPS6594_REG_MASK_COMM_ERR			0x57
+#define TPS6594_REG_MASK_READBACK_ERR			0x58
+#define TPS6594_REG_MASK_ESM				0x59
+
+#define TPS6594_REG_INT_TOP				0x5a
+#define TPS6594_REG_INT_BUCK				0x5b
+#define TPS6594_REG_INT_BUCK1_2				0x5c
+#define TPS6594_REG_INT_BUCK3_4				0x5d
+#define TPS6594_REG_INT_BUCK5				0x5e
+#define TPS6594_REG_INT_LDO_VMON			0x5f
+#define TPS6594_REG_INT_LDO1_2				0x60
+#define TPS6594_REG_INT_LDO3_4				0x61
+#define TPS6594_REG_INT_VMON				0x62
+#define TPS6594_REG_INT_GPIO				0x63
+#define TPS6594_REG_INT_GPIO1_8				0x64
+#define TPS6594_REG_INT_STARTUP				0x65
+#define TPS6594_REG_INT_MISC				0x66
+#define TPS6594_REG_INT_MODERATE_ERR			0x67
+#define TPS6594_REG_INT_SEVERE_ERR			0x68
+#define TPS6594_REG_INT_FSM_ERR				0x69
+#define TPS6594_REG_INT_COMM_ERR			0x6a
+#define TPS6594_REG_INT_READBACK_ERR			0x6b
+#define TPS6594_REG_INT_ESM				0x6c
+
+#define TPS6594_REG_STAT_BUCK1_2			0x6d
+#define TPS6594_REG_STAT_BUCK3_4			0x6e
+#define TPS6594_REG_STAT_BUCK5				0x6f
+#define TPS6594_REG_STAT_LDO1_2				0x70
+#define TPS6594_REG_STAT_LDO3_4				0x71
+#define TPS6594_REG_STAT_VMON				0x72
+#define TPS6594_REG_STAT_STARTUP			0x73
+#define TPS6594_REG_STAT_MISC				0x74
+#define TPS6594_REG_STAT_MODERATE_ERR			0x75
+#define TPS6594_REG_STAT_SEVERE_ERR			0x76
+#define TPS6594_REG_STAT_READBACK_ERR			0x77
+
+#define TPS6594_REG_PGOOD_SEL_1				0x78
+#define TPS6594_REG_PGOOD_SEL_2				0x79
+#define TPS6594_REG_PGOOD_SEL_3				0x7a
+#define TPS6594_REG_PGOOD_SEL_4				0x7b
+
+#define TPS6594_REG_PLL_CTRL				0x7c
+
+#define TPS6594_REG_CONFIG_1				0x7d
+#define TPS6594_REG_CONFIG_2				0x7e
+
+#define TPS6594_REG_ENABLE_DRV_REG			0x80
+
+#define TPS6594_REG_MISC_CTRL				0x81
+
+#define TPS6594_REG_ENABLE_DRV_STAT			0x82
+
+#define TPS6594_REG_RECOV_CNT_REG_1			0x83
+#define TPS6594_REG_RECOV_CNT_REG_2			0x84
+
+#define TPS6594_REG_FSM_I2C_TRIGGERS			0x85
+#define TPS6594_REG_FSM_NSLEEP_TRIGGERS			0x86
+
+#define TPS6594_REG_BUCK_RESET_REG			0x87
+
+#define TPS6594_REG_SPREAD_SPECTRUM_1			0x88
+
+#define TPS6594_REG_FREQ_SEL				0x8a
+
+#define TPS6594_REG_FSM_STEP_SIZE			0x8b
+
+#define TPS6594_REG_LDO_RV_TIMEOUT_REG_1		0x8c
+#define TPS6594_REG_LDO_RV_TIMEOUT_REG_2		0x8d
+
+#define TPS6594_REG_USER_SPARE_REGS			0x8e
+
+#define TPS6594_REG_ESM_MCU_START_REG			0x8f
+#define TPS6594_REG_ESM_MCU_DELAY1_REG			0x90
+#define TPS6594_REG_ESM_MCU_DELAY2_REG			0x91
+#define TPS6594_REG_ESM_MCU_MODE_CFG			0x92
+#define TPS6594_REG_ESM_MCU_HMAX_REG			0x93
+#define TPS6594_REG_ESM_MCU_HMIN_REG			0x94
+#define TPS6594_REG_ESM_MCU_LMAX_REG			0x95
+#define TPS6594_REG_ESM_MCU_LMIN_REG			0x96
+#define TPS6594_REG_ESM_MCU_ERR_CNT_REG			0x97
+#define TPS6594_REG_ESM_SOC_START_REG			0x98
+#define TPS6594_REG_ESM_SOC_DELAY1_REG			0x99
+#define TPS6594_REG_ESM_SOC_DELAY2_REG			0x9a
+#define TPS6594_REG_ESM_SOC_MODE_CFG			0x9b
+#define TPS6594_REG_ESM_SOC_HMAX_REG			0x9c
+#define TPS6594_REG_ESM_SOC_HMIN_REG			0x9d
+#define TPS6594_REG_ESM_SOC_LMAX_REG			0x9e
+#define TPS6594_REG_ESM_SOC_LMIN_REG			0x9f
+#define TPS6594_REG_ESM_SOC_ERR_CNT_REG			0xa0
+
+#define TPS6594_REG_REGISTER_LOCK			0xa1
+
+#define TPS6594_REG_MANUFACTURING_VER			0xa6
+
+#define TPS6594_REG_CUSTOMER_NVM_ID_REG			0xa7
+
+#define TPS6594_REG_VMON_CONF_REG			0xa8
+
+#define TPS6594_REG_SOFT_REBOOT_REG			0xab
+
+#define TPS6594_REG_RTC_SECONDS				0xb5
+#define TPS6594_REG_RTC_MINUTES				0xb6
+#define TPS6594_REG_RTC_HOURS				0xb7
+#define TPS6594_REG_RTC_DAYS				0xb8
+#define TPS6594_REG_RTC_MONTHS				0xb9
+#define TPS6594_REG_RTC_YEARS				0xba
+#define TPS6594_REG_RTC_WEEKS				0xbb
+
+#define TPS6594_REG_ALARM_SECONDS			0xbc
+#define TPS6594_REG_ALARM_MINUTES			0xbd
+#define TPS6594_REG_ALARM_HOURS				0xbe
+#define TPS6594_REG_ALARM_DAYS				0xbf
+#define TPS6594_REG_ALARM_MONTHS			0xc0
+#define TPS6594_REG_ALARM_YEARS				0xc1
+
+#define TPS6594_REG_RTC_CTRL_1				0xc2
+#define TPS6594_REG_RTC_CTRL_2				0xc3
+#define TPS6594_REG_RTC_STATUS				0xc4
+#define TPS6594_REG_RTC_INTERRUPTS			0xc5
+#define TPS6594_REG_RTC_COMP_LSB			0xc6
+#define TPS6594_REG_RTC_COMP_MSB			0xc7
+#define TPS6594_REG_RTC_RESET_STATUS			0xc8
+
+#define TPS6594_REG_SCRATCH_PAD_REG_1			0xc9
+#define TPS6594_REG_SCRATCH_PAD_REG_2			0xca
+#define TPS6594_REG_SCRATCH_PAD_REG_3			0xcb
+#define TPS6594_REG_SCRATCH_PAD_REG_4			0xcc
+
+#define TPS6594_REG_PFSM_DELAY_REG_1			0xcd
+#define TPS6594_REG_PFSM_DELAY_REG_2			0xce
+#define TPS6594_REG_PFSM_DELAY_REG_3			0xcf
+#define TPS6594_REG_PFSM_DELAY_REG_4			0xd0
+
+/* Registers for page 1 of TPS6594 */
+#define TPS6594_REG_SERIAL_IF_CONFIG			0x11a
+#define TPS6594_REG_I2C1_ID				0x122
+#define TPS6594_REG_I2C2_ID				0x123
+
+/* Registers for page 4 of TPS6594 */
+#define TPS6594_REG_WD_ANSWER_REG			0x401
+#define TPS6594_REG_WD_QUESTION_ANSW_CNT		0x402
+#define TPS6594_REG_WD_WIN1_CFG				0x403
+#define TPS6594_REG_WD_WIN2_CFG				0x404
+#define TPS6594_REG_WD_LONGWIN_CFG			0x405
+#define TPS6594_REG_WD_MODE_REG				0x406
+#define TPS6594_REG_WD_QA_CFG				0x407
+#define TPS6594_REG_WD_ERR_STATUS			0x408
+#define TPS6594_REG_WD_THR_CFG				0x409
+#define TPS6594_REG_DWD_FAIL_CNT_REG			0x40a
+
+/* BUCKX_CTRL register field definition */
+#define TPS6594_BIT_BUCK_EN				BIT(0)
+#define TPS6594_BIT_BUCK_FPWM				BIT(1)
+#define TPS6594_BIT_BUCK_FPWM_MP			BIT(2)
+#define TPS6594_BIT_BUCK_VSEL				BIT(3)
+#define TPS6594_BIT_BUCK_VMON_EN			BIT(4)
+#define TPS6594_BIT_BUCK_PLDN				BIT(5)
+#define TPS6594_BIT_BUCK_RV_SEL				BIT(7)
+
+/* BUCKX_CONF register field definition */
+#define TPS6594_MASK_BUCK_SLEW_RATE			GENMASK(2, 0)
+#define TPS6594_MASK_BUCK_ILIM				GENMASK(5, 3)
+
+/* BUCKX_PG_WINDOW register field definition */
+#define TPS6594_MASK_BUCK_OV_THR			GENMASK(2, 0)
+#define TPS6594_MASK_BUCK_UV_THR			GENMASK(5, 3)
+
+/* BUCKX VSET */
+#define TPS6594_MASK_BUCKS_VSET GENMASK(7, 0)
+
+/* LDOX_CTRL register field definition */
+#define TPS6594_BIT_LDO_EN				BIT(0)
+#define TPS6594_BIT_LDO_SLOW_RAMP			BIT(1)
+#define TPS6594_BIT_LDO_VMON_EN				BIT(4)
+#define TPS6594_MASK_LDO_PLDN				GENMASK(6, 5)
+#define TPS6594_BIT_LDO_RV_SEL				BIT(7)
+
+/* LDORTC_CTRL register field definition */
+#define TPS6594_BIT_LDORTC_DIS				BIT(0)
+
+/* LDOX_VOUT register field definition */
+#define TPS6594_MASK_LDO123_VSET			GENMASK(6, 1)
+#define TPS6594_MASK_LDO4_VSET				GENMASK(6, 0)
+#define TPS6594_BIT_LDO_BYPASS				BIT(7)
+
+/* LDOX_PG_WINDOW register field definition */
+#define TPS6594_MASK_LDO_OV_THR				GENMASK(2, 0)
+#define TPS6594_MASK_LDO_UV_THR				GENMASK(5, 3)
+
+/* VCCA_VMON_CTRL register field definition */
+#define TPS6594_BIT_VMON_EN				BIT(0)
+#define TPS6594_BIT_VMON1_EN				BIT(1)
+#define TPS6594_BIT_VMON1_RV_SEL			BIT(2)
+#define TPS6594_BIT_VMON2_EN				BIT(3)
+#define TPS6594_BIT_VMON2_RV_SEL			BIT(4)
+#define TPS6594_BIT_VMON_DEGLITCH_SEL			BIT(5)
+
+/* VCCA_PG_WINDOW register field definition */
+#define TPS6594_MASK_VCCA_OV_THR			GENMASK(2, 0)
+#define TPS6594_MASK_VCCA_UV_THR			GENMASK(5, 3)
+#define TPS6594_BIT_VCCA_PG_SET				BIT(6)
+
+/* VMONX_PG_WINDOW register field definition */
+#define TPS6594_MASK_VMONX_OV_THR			GENMASK(2, 0)
+#define TPS6594_MASK_VMONX_UV_THR			GENMASK(5, 3)
+#define TPS6594_BIT_VMONX_RANGE				BIT(6)
+
+/* GPIOX_CONF register field definition */
+#define TPS6594_BIT_GPIO_DIR				BIT(0)
+#define TPS6594_BIT_GPIO_OD				BIT(1)
+#define TPS6594_BIT_GPIO_PU_SEL				BIT(2)
+#define TPS6594_BIT_GPIO_PU_PD_EN			BIT(3)
+#define TPS6594_BIT_GPIO_DEGLITCH_EN			BIT(4)
+#define TPS6594_MASK_GPIO_SEL				GENMASK(7, 5)
+
+/* NPWRON_CONF register field definition */
+#define TPS6594_BIT_NRSTOUT_OD				BIT(0)
+#define TPS6594_BIT_ENABLE_PU_SEL			BIT(2)
+#define TPS6594_BIT_ENABLE_PU_PD_EN			BIT(3)
+#define TPS6594_BIT_ENABLE_DEGLITCH_EN			BIT(4)
+#define TPS6594_BIT_ENABLE_POL				BIT(5)
+#define TPS6594_MASK_NPWRON_SEL				GENMASK(7, 6)
+
+/* GPIO_OUT_X register field definition */
+#define TPS6594_BIT_GPIOX_OUT(gpio_inst)		BIT((gpio_inst) % 8)
+
+/* GPIO_IN_X register field definition */
+#define TPS6594_BIT_GPIOX_IN(gpio_inst)			BIT((gpio_inst) % 8)
+#define TPS6594_BIT_NPWRON_IN				BIT(3)
+
+/* RAIL_SEL_1 register field definition */
+#define TPS6594_MASK_BUCK1_GRP_SEL			GENMASK(1, 0)
+#define TPS6594_MASK_BUCK2_GRP_SEL			GENMASK(3, 2)
+#define TPS6594_MASK_BUCK3_GRP_SEL			GENMASK(5, 4)
+#define TPS6594_MASK_BUCK4_GRP_SEL			GENMASK(7, 6)
+
+/* RAIL_SEL_2 register field definition */
+#define TPS6594_MASK_BUCK5_GRP_SEL			GENMASK(1, 0)
+#define TPS6594_MASK_LDO1_GRP_SEL			GENMASK(3, 2)
+#define TPS6594_MASK_LDO2_GRP_SEL			GENMASK(5, 4)
+#define TPS6594_MASK_LDO3_GRP_SEL			GENMASK(7, 6)
+
+/* RAIL_SEL_3 register field definition */
+#define TPS6594_MASK_LDO4_GRP_SEL			GENMASK(1, 0)
+#define TPS6594_MASK_VCCA_GRP_SEL			GENMASK(3, 2)
+#define TPS6594_MASK_VMON1_GRP_SEL			GENMASK(5, 4)
+#define TPS6594_MASK_VMON2_GRP_SEL			GENMASK(7, 6)
+
+/* FSM_TRIG_SEL_1 register field definition */
+#define TPS6594_MASK_MCU_RAIL_TRIG			GENMASK(1, 0)
+#define TPS6594_MASK_SOC_RAIL_TRIG			GENMASK(3, 2)
+#define TPS6594_MASK_OTHER_RAIL_TRIG			GENMASK(5, 4)
+#define TPS6594_MASK_SEVERE_ERR_TRIG			GENMASK(7, 6)
+
+/* FSM_TRIG_SEL_2 register field definition */
+#define TPS6594_MASK_MODERATE_ERR_TRIG			GENMASK(1, 0)
+
+/* FSM_TRIG_MASK_X register field definition */
+#define TPS6594_BIT_GPIOX_FSM_MASK(gpio_inst)		BIT(((gpio_inst) << 1) % 8)
+#define TPS6594_BIT_GPIOX_FSM_MASK_POL(gpio_inst)	BIT(((gpio_inst) << 1) % 8 + 1)
+
+/* MASK_BUCKX register field definition */
+#define TPS6594_BIT_BUCKX_OV_MASK(buck_inst)		BIT(((buck_inst) << 2) % 8)
+#define TPS6594_BIT_BUCKX_UV_MASK(buck_inst)		BIT(((buck_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_BUCKX_ILIM_MASK(buck_inst)		BIT(((buck_inst) << 2) % 8 + 3)
+
+/* MASK_LDOX register field definition */
+#define TPS6594_BIT_LDOX_OV_MASK(ldo_inst)		BIT(((ldo_inst) << 2) % 8)
+#define TPS6594_BIT_LDOX_UV_MASK(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_LDOX_ILIM_MASK(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 3)
+
+/* MASK_VMON register field definition */
+#define TPS6594_BIT_VCCA_OV_MASK			BIT(0)
+#define TPS6594_BIT_VCCA_UV_MASK			BIT(1)
+#define TPS6594_BIT_VMON1_OV_MASK			BIT(2)
+#define TPS6594_BIT_VMON1_UV_MASK			BIT(3)
+#define TPS6594_BIT_VMON2_OV_MASK			BIT(5)
+#define TPS6594_BIT_VMON2_UV_MASK			BIT(6)
+
+/* MASK_GPIOX register field definition */
+#define TPS6594_BIT_GPIOX_FALL_MASK(gpio_inst)		BIT((gpio_inst) < 8 ? \
+							    (gpio_inst) : (gpio_inst) % 8)
+#define TPS6594_BIT_GPIOX_RISE_MASK(gpio_inst)		BIT((gpio_inst) < 8 ? \
+							    (gpio_inst) : (gpio_inst) % 8 + 3)
+
+/* MASK_STARTUP register field definition */
+#define TPS6594_BIT_NPWRON_START_MASK			BIT(0)
+#define TPS6594_BIT_ENABLE_MASK				BIT(1)
+#define TPS6594_BIT_FSD_MASK				BIT(4)
+#define TPS6594_BIT_SOFT_REBOOT_MASK			BIT(5)
+
+/* MASK_MISC register field definition */
+#define TPS6594_BIT_BIST_PASS_MASK			BIT(0)
+#define TPS6594_BIT_EXT_CLK_MASK			BIT(1)
+#define TPS6594_BIT_TWARN_MASK				BIT(3)
+
+/* MASK_MODERATE_ERR register field definition */
+#define TPS6594_BIT_BIST_FAIL_MASK			BIT(1)
+#define TPS6594_BIT_REG_CRC_ERR_MASK			BIT(2)
+#define TPS6594_BIT_SPMI_ERR_MASK			BIT(4)
+#define TPS6594_BIT_NPWRON_LONG_MASK			BIT(5)
+#define TPS6594_BIT_NINT_READBACK_MASK			BIT(6)
+#define TPS6594_BIT_NRSTOUT_READBACK_MASK		BIT(7)
+
+/* MASK_FSM_ERR register field definition */
+#define TPS6594_BIT_IMM_SHUTDOWN_MASK			BIT(0)
+#define TPS6594_BIT_ORD_SHUTDOWN_MASK			BIT(1)
+#define TPS6594_BIT_MCU_PWR_ERR_MASK			BIT(2)
+#define TPS6594_BIT_SOC_PWR_ERR_MASK			BIT(3)
+
+/* MASK_COMM_ERR register field definition */
+#define TPS6594_BIT_COMM_FRM_ERR_MASK			BIT(0)
+#define TPS6594_BIT_COMM_CRC_ERR_MASK			BIT(1)
+#define TPS6594_BIT_COMM_ADR_ERR_MASK			BIT(3)
+#define TPS6594_BIT_I2C2_CRC_ERR_MASK			BIT(5)
+#define TPS6594_BIT_I2C2_ADR_ERR_MASK			BIT(7)
+
+/* MASK_READBACK_ERR register field definition */
+#define TPS6594_BIT_EN_DRV_READBACK_MASK		BIT(0)
+#define TPS6594_BIT_NRSTOUT_SOC_READBACK_MASK		BIT(3)
+
+/* MASK_ESM register field definition */
+#define TPS6594_BIT_ESM_SOC_PIN_MASK			BIT(0)
+#define TPS6594_BIT_ESM_SOC_FAIL_MASK			BIT(1)
+#define TPS6594_BIT_ESM_SOC_RST_MASK			BIT(2)
+#define TPS6594_BIT_ESM_MCU_PIN_MASK			BIT(3)
+#define TPS6594_BIT_ESM_MCU_FAIL_MASK			BIT(4)
+#define TPS6594_BIT_ESM_MCU_RST_MASK			BIT(5)
+
+/* INT_TOP register field definition */
+#define TPS6594_BIT_BUCK_INT				BIT(0)
+#define TPS6594_BIT_LDO_VMON_INT			BIT(1)
+#define TPS6594_BIT_GPIO_INT				BIT(2)
+#define TPS6594_BIT_STARTUP_INT				BIT(3)
+#define TPS6594_BIT_MISC_INT				BIT(4)
+#define TPS6594_BIT_MODERATE_ERR_INT			BIT(5)
+#define TPS6594_BIT_SEVERE_ERR_INT			BIT(6)
+#define TPS6594_BIT_FSM_ERR_INT				BIT(7)
+
+/* INT_BUCK register field definition */
+#define TPS6594_BIT_BUCK1_2_INT				BIT(0)
+#define TPS6594_BIT_BUCK3_4_INT				BIT(1)
+#define TPS6594_BIT_BUCK5_INT				BIT(2)
+
+/* INT_BUCKX register field definition */
+#define TPS6594_BIT_BUCKX_OV_INT(buck_inst)		BIT(((buck_inst) << 2) % 8)
+#define TPS6594_BIT_BUCKX_UV_INT(buck_inst)		BIT(((buck_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_BUCKX_SC_INT(buck_inst)		BIT(((buck_inst) << 2) % 8 + 2)
+#define TPS6594_BIT_BUCKX_ILIM_INT(buck_inst)		BIT(((buck_inst) << 2) % 8 + 3)
+
+/* INT_LDO_VMON register field definition */
+#define TPS6594_BIT_LDO1_2_INT				BIT(0)
+#define TPS6594_BIT_LDO3_4_INT				BIT(1)
+#define TPS6594_BIT_VCCA_INT				BIT(4)
+
+/* INT_LDOX register field definition */
+#define TPS6594_BIT_LDOX_OV_INT(ldo_inst)		BIT(((ldo_inst) << 2) % 8)
+#define TPS6594_BIT_LDOX_UV_INT(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_LDOX_SC_INT(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 2)
+#define TPS6594_BIT_LDOX_ILIM_INT(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 3)
+
+/* INT_VMON register field definition */
+#define TPS6594_BIT_VCCA_OV_INT				BIT(0)
+#define TPS6594_BIT_VCCA_UV_INT				BIT(1)
+#define TPS6594_BIT_VMON1_OV_INT			BIT(2)
+#define TPS6594_BIT_VMON1_UV_INT			BIT(3)
+#define TPS6594_BIT_VMON1_RV_INT			BIT(4)
+#define TPS6594_BIT_VMON2_OV_INT			BIT(5)
+#define TPS6594_BIT_VMON2_UV_INT			BIT(6)
+#define TPS6594_BIT_VMON2_RV_INT			BIT(7)
+
+/* INT_GPIO register field definition */
+#define TPS6594_BIT_GPIO9_INT				BIT(0)
+#define TPS6594_BIT_GPIO10_INT				BIT(1)
+#define TPS6594_BIT_GPIO11_INT				BIT(2)
+#define TPS6594_BIT_GPIO1_8_INT				BIT(3)
+
+/* INT_GPIOX register field definition */
+#define TPS6594_BIT_GPIOX_INT(gpio_inst)		BIT(gpio_inst)
+
+/* INT_STARTUP register field definition */
+#define TPS6594_BIT_NPWRON_START_INT			BIT(0)
+#define TPS6594_BIT_ENABLE_INT				BIT(1)
+#define TPS6594_BIT_RTC_INT				BIT(2)
+#define TPS6594_BIT_FSD_INT				BIT(4)
+#define TPS6594_BIT_SOFT_REBOOT_INT			BIT(5)
+
+/* INT_MISC register field definition */
+#define TPS6594_BIT_BIST_PASS_INT			BIT(0)
+#define TPS6594_BIT_EXT_CLK_INT				BIT(1)
+#define TPS6594_BIT_TWARN_INT				BIT(3)
+
+/* INT_MODERATE_ERR register field definition */
+#define TPS6594_BIT_TSD_ORD_INT				BIT(0)
+#define TPS6594_BIT_BIST_FAIL_INT			BIT(1)
+#define TPS6594_BIT_REG_CRC_ERR_INT			BIT(2)
+#define TPS6594_BIT_RECOV_CNT_INT			BIT(3)
+#define TPS6594_BIT_SPMI_ERR_INT			BIT(4)
+#define TPS6594_BIT_NPWRON_LONG_INT			BIT(5)
+#define TPS6594_BIT_NINT_READBACK_INT			BIT(6)
+#define TPS6594_BIT_NRSTOUT_READBACK_INT		BIT(7)
+
+/* INT_SEVERE_ERR register field definition */
+#define TPS6594_BIT_TSD_IMM_INT				BIT(0)
+#define TPS6594_BIT_VCCA_OVP_INT			BIT(1)
+#define TPS6594_BIT_PFSM_ERR_INT			BIT(2)
+
+/* INT_FSM_ERR register field definition */
+#define TPS6594_BIT_IMM_SHUTDOWN_INT			BIT(0)
+#define TPS6594_BIT_ORD_SHUTDOWN_INT			BIT(1)
+#define TPS6594_BIT_MCU_PWR_ERR_INT			BIT(2)
+#define TPS6594_BIT_SOC_PWR_ERR_INT			BIT(3)
+#define TPS6594_BIT_COMM_ERR_INT			BIT(4)
+#define TPS6594_BIT_READBACK_ERR_INT			BIT(5)
+#define TPS6594_BIT_ESM_INT				BIT(6)
+#define TPS6594_BIT_WD_INT				BIT(7)
+
+/* INT_COMM_ERR register field definition */
+#define TPS6594_BIT_COMM_FRM_ERR_INT			BIT(0)
+#define TPS6594_BIT_COMM_CRC_ERR_INT			BIT(1)
+#define TPS6594_BIT_COMM_ADR_ERR_INT			BIT(3)
+#define TPS6594_BIT_I2C2_CRC_ERR_INT			BIT(5)
+#define TPS6594_BIT_I2C2_ADR_ERR_INT			BIT(7)
+
+/* INT_READBACK_ERR register field definition */
+#define TPS6594_BIT_EN_DRV_READBACK_INT			BIT(0)
+#define TPS6594_BIT_NRSTOUT_SOC_READBACK_INT		BIT(3)
+
+/* INT_ESM register field definition */
+#define TPS6594_BIT_ESM_SOC_PIN_INT			BIT(0)
+#define TPS6594_BIT_ESM_SOC_FAIL_INT			BIT(1)
+#define TPS6594_BIT_ESM_SOC_RST_INT			BIT(2)
+#define TPS6594_BIT_ESM_MCU_PIN_INT			BIT(3)
+#define TPS6594_BIT_ESM_MCU_FAIL_INT			BIT(4)
+#define TPS6594_BIT_ESM_MCU_RST_INT			BIT(5)
+
+/* STAT_BUCKX register field definition */
+#define TPS6594_BIT_BUCKX_OV_STAT(buck_inst)		BIT(((buck_inst) << 2) % 8)
+#define TPS6594_BIT_BUCKX_UV_STAT(buck_inst)		BIT(((buck_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_BUCKX_ILIM_STAT(buck_inst)		BIT(((buck_inst) << 2) % 8 + 3)
+
+/* STAT_LDOX register field definition */
+#define TPS6594_BIT_LDOX_OV_STAT(ldo_inst)		BIT(((ldo_inst) << 2) % 8)
+#define TPS6594_BIT_LDOX_UV_STAT(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 1)
+#define TPS6594_BIT_LDOX_ILIM_STAT(ldo_inst)		BIT(((ldo_inst) << 2) % 8 + 3)
+
+/* STAT_VMON register field definition */
+#define TPS6594_BIT_VCCA_OV_STAT			BIT(0)
+#define TPS6594_BIT_VCCA_UV_STAT			BIT(1)
+#define TPS6594_BIT_VMON1_OV_STAT			BIT(2)
+#define TPS6594_BIT_VMON1_UV_STAT			BIT(3)
+#define TPS6594_BIT_VMON2_OV_STAT			BIT(5)
+#define TPS6594_BIT_VMON2_UV_STAT			BIT(6)
+
+/* STAT_STARTUP register field definition */
+#define TPS6594_BIT_ENABLE_STAT				BIT(1)
+
+/* STAT_MISC register field definition */
+#define TPS6594_BIT_EXT_CLK_STAT			BIT(1)
+#define TPS6594_BIT_TWARN_STAT				BIT(3)
+
+/* STAT_MODERATE_ERR register field definition */
+#define TPS6594_BIT_TSD_ORD_STAT			BIT(0)
+
+/* STAT_SEVERE_ERR register field definition */
+#define TPS6594_BIT_TSD_IMM_STAT			BIT(0)
+#define TPS6594_BIT_VCCA_OVP_STAT			BIT(1)
+
+/* STAT_READBACK_ERR register field definition */
+#define TPS6594_BIT_EN_DRV_READBACK_STAT		BIT(0)
+#define TPS6594_BIT_NINT_READBACK_STAT			BIT(1)
+#define TPS6594_BIT_NRSTOUT_READBACK_STAT		BIT(2)
+#define TPS6594_BIT_NRSTOUT_SOC_READBACK_STAT		BIT(3)
+
+/* PGOOD_SEL_1 register field definition */
+#define TPS6594_MASK_PGOOD_SEL_BUCK1			GENMASK(1, 0)
+#define TPS6594_MASK_PGOOD_SEL_BUCK2			GENMASK(3, 2)
+#define TPS6594_MASK_PGOOD_SEL_BUCK3			GENMASK(5, 4)
+#define TPS6594_MASK_PGOOD_SEL_BUCK4			GENMASK(7, 6)
+
+/* PGOOD_SEL_2 register field definition */
+#define TPS6594_MASK_PGOOD_SEL_BUCK5			GENMASK(1, 0)
+
+/* PGOOD_SEL_3 register field definition */
+#define TPS6594_MASK_PGOOD_SEL_LDO1			GENMASK(1, 0)
+#define TPS6594_MASK_PGOOD_SEL_LDO2			GENMASK(3, 2)
+#define TPS6594_MASK_PGOOD_SEL_LDO3			GENMASK(5, 4)
+#define TPS6594_MASK_PGOOD_SEL_LDO4			GENMASK(7, 6)
+
+/* PGOOD_SEL_4 register field definition */
+#define TPS6594_BIT_PGOOD_SEL_VCCA			BIT(0)
+#define TPS6594_BIT_PGOOD_SEL_VMON1			BIT(1)
+#define TPS6594_BIT_PGOOD_SEL_VMON2			BIT(2)
+#define TPS6594_BIT_PGOOD_SEL_TDIE_WARN			BIT(3)
+#define TPS6594_BIT_PGOOD_SEL_NRSTOUT			BIT(4)
+#define TPS6594_BIT_PGOOD_SEL_NRSTOUT_SOC		BIT(5)
+#define TPS6594_BIT_PGOOD_POL				BIT(6)
+#define TPS6594_BIT_PGOOD_WINDOW			BIT(7)
+
+/* PLL_CTRL register field definition */
+#define TPS6594_MASK_EXT_CLK_FREQ			GENMASK(1, 0)
+
+/* CONFIG_1 register field definition */
+#define TPS6594_BIT_TWARN_LEVEL				BIT(0)
+#define TPS6594_BIT_TSD_ORD_LEVEL			BIT(1)
+#define TPS6594_BIT_I2C1_HS				BIT(3)
+#define TPS6594_BIT_I2C2_HS				BIT(4)
+#define TPS6594_BIT_EN_ILIM_FSM_CTRL			BIT(5)
+#define TPS6594_BIT_NSLEEP1_MASK			BIT(6)
+#define TPS6594_BIT_NSLEEP2_MASK			BIT(7)
+
+/* CONFIG_2 register field definition */
+#define TPS6594_BIT_BB_CHARGER_EN			BIT(0)
+#define TPS6594_BIT_BB_ICHR				BIT(1)
+#define TPS6594_MASK_BB_VEOC				GENMASK(3, 2)
+#define TPS6594_BB_EOC_RDY				BIT(7)
+
+/* ENABLE_DRV_REG register field definition */
+#define TPS6594_BIT_ENABLE_DRV				BIT(0)
+
+/* MISC_CTRL register field definition */
+#define TPS6594_BIT_NRSTOUT				BIT(0)
+#define TPS6594_BIT_NRSTOUT_SOC				BIT(1)
+#define TPS6594_BIT_LPM_EN				BIT(2)
+#define TPS6594_BIT_CLKMON_EN				BIT(3)
+#define TPS6594_BIT_AMUXOUT_EN				BIT(4)
+#define TPS6594_BIT_SEL_EXT_CLK				BIT(5)
+#define TPS6594_MASK_SYNCCLKOUT_FREQ_SEL		GENMASK(7, 6)
+
+/* ENABLE_DRV_STAT register field definition */
+#define TPS6594_BIT_EN_DRV_IN				BIT(0)
+#define TPS6594_BIT_NRSTOUT_IN				BIT(1)
+#define TPS6594_BIT_NRSTOUT_SOC_IN			BIT(2)
+#define TPS6594_BIT_FORCE_EN_DRV_LOW			BIT(3)
+#define TPS6594_BIT_SPMI_LPM_EN				BIT(4)
+
+/* RECOV_CNT_REG_1 register field definition */
+#define TPS6594_MASK_RECOV_CNT				GENMASK(3, 0)
+
+/* RECOV_CNT_REG_2 register field definition */
+#define TPS6594_MASK_RECOV_CNT_THR			GENMASK(3, 0)
+#define TPS6594_BIT_RECOV_CNT_CLR			BIT(4)
+
+/* FSM_I2C_TRIGGERS register field definition */
+#define TPS6594_BIT_TRIGGER_I2C(bit)			BIT(bit)
+
+/* FSM_NSLEEP_TRIGGERS register field definition */
+#define TPS6594_BIT_NSLEEP1B				BIT(0)
+#define TPS6594_BIT_NSLEEP2B				BIT(1)
+
+/* BUCK_RESET_REG register field definition */
+#define TPS6594_BIT_BUCKX_RESET(buck_inst)		BIT(buck_inst)
+
+/* SPREAD_SPECTRUM_1 register field definition */
+#define TPS6594_MASK_SS_DEPTH				GENMASK(1, 0)
+#define TPS6594_BIT_SS_EN				BIT(2)
+
+/* FREQ_SEL register field definition */
+#define TPS6594_BIT_BUCKX_FREQ_SEL(buck_inst)		BIT(buck_inst)
+
+/* FSM_STEP_SIZE register field definition */
+#define TPS6594_MASK_PFSM_DELAY_STEP			GENMASK(4, 0)
+
+/* LDO_RV_TIMEOUT_REG_1 register field definition */
+#define TPS6594_MASK_LDO1_RV_TIMEOUT			GENMASK(3, 0)
+#define TPS6594_MASK_LDO2_RV_TIMEOUT			GENMASK(7, 4)
+
+/* LDO_RV_TIMEOUT_REG_2 register field definition */
+#define TPS6594_MASK_LDO3_RV_TIMEOUT			GENMASK(3, 0)
+#define TPS6594_MASK_LDO4_RV_TIMEOUT			GENMASK(7, 4)
+
+/* USER_SPARE_REGS register field definition */
+#define TPS6594_BIT_USER_SPARE(bit)			BIT(bit)
+
+/* ESM_MCU_START_REG register field definition */
+#define TPS6594_BIT_ESM_MCU_START			BIT(0)
+
+/* ESM_MCU_MODE_CFG register field definition */
+#define TPS6594_MASK_ESM_MCU_ERR_CNT_TH			GENMASK(3, 0)
+#define TPS6594_BIT_ESM_MCU_ENDRV			BIT(5)
+#define TPS6594_BIT_ESM_MCU_EN				BIT(6)
+#define TPS6594_BIT_ESM_MCU_MODE			BIT(7)
+
+/* ESM_MCU_ERR_CNT_REG register field definition */
+#define TPS6594_MASK_ESM_MCU_ERR_CNT			GENMASK(4, 0)
+
+/* ESM_SOC_START_REG register field definition */
+#define TPS6594_BIT_ESM_SOC_START			BIT(0)
+
+/* ESM_SOC_MODE_CFG register field definition */
+#define TPS6594_MASK_ESM_SOC_ERR_CNT_TH			GENMASK(3, 0)
+#define TPS6594_BIT_ESM_SOC_ENDRV			BIT(5)
+#define TPS6594_BIT_ESM_SOC_EN				BIT(6)
+#define TPS6594_BIT_ESM_SOC_MODE			BIT(7)
+
+/* ESM_SOC_ERR_CNT_REG register field definition */
+#define TPS6594_MASK_ESM_SOC_ERR_CNT			GENMASK(4, 0)
+
+/* REGISTER_LOCK register field definition */
+#define TPS6594_BIT_REGISTER_LOCK_STATUS		BIT(0)
+
+/* VMON_CONF register field definition */
+#define TPS6594_MASK_VMON1_SLEW_RATE			GENMASK(2, 0)
+#define TPS6594_MASK_VMON2_SLEW_RATE			GENMASK(5, 3)
+
+/* SOFT_REBOOT_REG register field definition */
+#define TPS6594_BIT_SOFT_REBOOT				BIT(0)
+
+/* RTC_SECONDS & ALARM_SECONDS register field definition */
+#define TPS6594_MASK_SECOND_0				GENMASK(3, 0)
+#define TPS6594_MASK_SECOND_1				GENMASK(6, 4)
+
+/* RTC_MINUTES & ALARM_MINUTES register field definition */
+#define TPS6594_MASK_MINUTE_0				GENMASK(3, 0)
+#define TPS6594_MASK_MINUTE_1				GENMASK(6, 4)
+
+/* RTC_HOURS & ALARM_HOURS register field definition */
+#define TPS6594_MASK_HOUR_0				GENMASK(3, 0)
+#define TPS6594_MASK_HOUR_1				GENMASK(5, 4)
+#define TPS6594_BIT_PM_NAM				BIT(7)
+
+/* RTC_DAYS & ALARM_DAYS register field definition */
+#define TPS6594_MASK_DAY_0				GENMASK(3, 0)
+#define TPS6594_MASK_DAY_1				GENMASK(5, 4)
+
+/* RTC_MONTHS & ALARM_MONTHS register field definition */
+#define TPS6594_MASK_MONTH_0				GENMASK(3, 0)
+#define TPS6594_BIT_MONTH_1				BIT(4)
+
+/* RTC_YEARS & ALARM_YEARS register field definition */
+#define TPS6594_MASK_YEAR_0				GENMASK(3, 0)
+#define TPS6594_MASK_YEAR_1				GENMASK(7, 4)
+
+/* RTC_WEEKS register field definition */
+#define TPS6594_MASK_WEEK				GENMASK(2, 0)
+
+/* RTC_CTRL_1 register field definition */
+#define TPS6594_BIT_STOP_RTC				BIT(0)
+#define TPS6594_BIT_ROUND_30S				BIT(1)
+#define TPS6594_BIT_AUTO_COMP				BIT(2)
+#define TPS6594_BIT_MODE_12_24				BIT(3)
+#define TPS6594_BIT_SET_32_COUNTER			BIT(5)
+#define TPS6594_BIT_GET_TIME				BIT(6)
+#define TPS6594_BIT_RTC_V_OPT				BIT(7)
+
+/* RTC_CTRL_2 register field definition */
+#define TPS6594_BIT_XTAL_EN				BIT(0)
+#define TPS6594_MASK_XTAL_SEL				GENMASK(2, 1)
+#define TPS6594_BIT_LP_STANDBY_SEL			BIT(3)
+#define TPS6594_BIT_FAST_BIST				BIT(4)
+#define TPS6594_MASK_STARTUP_DEST			GENMASK(6, 5)
+#define TPS6594_BIT_FIRST_STARTUP_DONE			BIT(7)
+
+/* RTC_STATUS register field definition */
+#define TPS6594_BIT_RUN					BIT(1)
+#define TPS6594_BIT_TIMER				BIT(5)
+#define TPS6594_BIT_ALARM				BIT(6)
+#define TPS6594_BIT_POWER_UP				BIT(7)
+
+/* RTC_INTERRUPTS register field definition */
+#define TPS6594_MASK_EVERY				GENMASK(1, 0)
+#define TPS6594_BIT_IT_TIMER				BIT(2)
+#define TPS6594_BIT_IT_ALARM				BIT(3)
+
+/* RTC_RESET_STATUS register field definition */
+#define TPS6594_BIT_RESET_STATUS_RTC			BIT(0)
+
+/* SERIAL_IF_CONFIG register field definition */
+#define TPS6594_BIT_I2C_SPI_SEL				BIT(0)
+#define TPS6594_BIT_I2C1_SPI_CRC_EN			BIT(1)
+#define TPS6594_BIT_I2C2_CRC_EN				BIT(2)
+#define TPS6594_MASK_T_CRC				GENMASK(7, 3)
+
+/* WD_QUESTION_ANSW_CNT register field definition */
+#define TPS6594_MASK_WD_QUESTION			GENMASK(3, 0)
+#define TPS6594_MASK_WD_ANSW_CNT			GENMASK(5, 4)
+
+/* WD_MODE_REG register field definition */
+#define TPS6594_BIT_WD_RETURN_LONGWIN			BIT(0)
+#define TPS6594_BIT_WD_MODE_SELECT			BIT(1)
+#define TPS6594_BIT_WD_PWRHOLD				BIT(2)
+
+/* WD_QA_CFG register field definition */
+#define TPS6594_MASK_WD_QUESTION_SEED			GENMASK(3, 0)
+#define TPS6594_MASK_WD_QA_LFSR				GENMASK(5, 4)
+#define TPS6594_MASK_WD_QA_FDBK				GENMASK(7, 6)
+
+/* WD_ERR_STATUS register field definition */
+#define TPS6594_BIT_WD_LONGWIN_TIMEOUT_INT		BIT(0)
+#define TPS6594_BIT_WD_TIMEOUT				BIT(1)
+#define TPS6594_BIT_WD_TRIG_EARLY			BIT(2)
+#define TPS6594_BIT_WD_ANSW_EARLY			BIT(3)
+#define TPS6594_BIT_WD_SEQ_ERR				BIT(4)
+#define TPS6594_BIT_WD_ANSW_ERR				BIT(5)
+#define TPS6594_BIT_WD_FAIL_INT				BIT(6)
+#define TPS6594_BIT_WD_RST_INT				BIT(7)
+
+/* WD_THR_CFG register field definition */
+#define TPS6594_MASK_WD_RST_TH				GENMASK(2, 0)
+#define TPS6594_MASK_WD_FAIL_TH				GENMASK(5, 3)
+#define TPS6594_BIT_WD_EN				BIT(6)
+#define TPS6594_BIT_WD_RST_EN				BIT(7)
+
+/* WD_FAIL_CNT_REG register field definition */
+#define TPS6594_MASK_WD_FAIL_CNT			GENMASK(3, 0)
+#define TPS6594_BIT_WD_FIRST_OK				BIT(5)
+#define TPS6594_BIT_WD_BAD_EVENT			BIT(6)
+
+/* CRC8 polynomial for I2C & SPI protocols */
+#define TPS6594_CRC8_POLYNOMIAL	0x07
+
+/* IRQs */
+enum tps6594_irqs {
+	/* INT_BUCK1_2 register */
+	TPS6594_IRQ_BUCK1_OV,
+	TPS6594_IRQ_BUCK1_UV,
+	TPS6594_IRQ_BUCK1_SC,
+	TPS6594_IRQ_BUCK1_ILIM,
+	TPS6594_IRQ_BUCK2_OV,
+	TPS6594_IRQ_BUCK2_UV,
+	TPS6594_IRQ_BUCK2_SC,
+	TPS6594_IRQ_BUCK2_ILIM,
+	/* INT_BUCK3_4 register */
+	TPS6594_IRQ_BUCK3_OV,
+	TPS6594_IRQ_BUCK3_UV,
+	TPS6594_IRQ_BUCK3_SC,
+	TPS6594_IRQ_BUCK3_ILIM,
+	TPS6594_IRQ_BUCK4_OV,
+	TPS6594_IRQ_BUCK4_UV,
+	TPS6594_IRQ_BUCK4_SC,
+	TPS6594_IRQ_BUCK4_ILIM,
+	/* INT_BUCK5 register */
+	TPS6594_IRQ_BUCK5_OV,
+	TPS6594_IRQ_BUCK5_UV,
+	TPS6594_IRQ_BUCK5_SC,
+	TPS6594_IRQ_BUCK5_ILIM,
+	/* INT_LDO1_2 register */
+	TPS6594_IRQ_LDO1_OV,
+	TPS6594_IRQ_LDO1_UV,
+	TPS6594_IRQ_LDO1_SC,
+	TPS6594_IRQ_LDO1_ILIM,
+	TPS6594_IRQ_LDO2_OV,
+	TPS6594_IRQ_LDO2_UV,
+	TPS6594_IRQ_LDO2_SC,
+	TPS6594_IRQ_LDO2_ILIM,
+	/* INT_LDO3_4 register */
+	TPS6594_IRQ_LDO3_OV,
+	TPS6594_IRQ_LDO3_UV,
+	TPS6594_IRQ_LDO3_SC,
+	TPS6594_IRQ_LDO3_ILIM,
+	TPS6594_IRQ_LDO4_OV,
+	TPS6594_IRQ_LDO4_UV,
+	TPS6594_IRQ_LDO4_SC,
+	TPS6594_IRQ_LDO4_ILIM,
+	/* INT_VMON register */
+	TPS6594_IRQ_VCCA_OV,
+	TPS6594_IRQ_VCCA_UV,
+	TPS6594_IRQ_VMON1_OV,
+	TPS6594_IRQ_VMON1_UV,
+	TPS6594_IRQ_VMON1_RV,
+	TPS6594_IRQ_VMON2_OV,
+	TPS6594_IRQ_VMON2_UV,
+	TPS6594_IRQ_VMON2_RV,
+	/* INT_GPIO register */
+	TPS6594_IRQ_GPIO9,
+	TPS6594_IRQ_GPIO10,
+	TPS6594_IRQ_GPIO11,
+	/* INT_GPIO1_8 register */
+	TPS6594_IRQ_GPIO1,
+	TPS6594_IRQ_GPIO2,
+	TPS6594_IRQ_GPIO3,
+	TPS6594_IRQ_GPIO4,
+	TPS6594_IRQ_GPIO5,
+	TPS6594_IRQ_GPIO6,
+	TPS6594_IRQ_GPIO7,
+	TPS6594_IRQ_GPIO8,
+	/* INT_STARTUP register */
+	TPS6594_IRQ_NPWRON_START,
+	TPS6594_IRQ_ENABLE,
+	TPS6594_IRQ_FSD,
+	TPS6594_IRQ_SOFT_REBOOT,
+	/* INT_MISC register */
+	TPS6594_IRQ_BIST_PASS,
+	TPS6594_IRQ_EXT_CLK,
+	TPS6594_IRQ_TWARN,
+	/* INT_MODERATE_ERR register */
+	TPS6594_IRQ_TSD_ORD,
+	TPS6594_IRQ_BIST_FAIL,
+	TPS6594_IRQ_REG_CRC_ERR,
+	TPS6594_IRQ_RECOV_CNT,
+	TPS6594_IRQ_SPMI_ERR,
+	TPS6594_IRQ_NPWRON_LONG,
+	TPS6594_IRQ_NINT_READBACK,
+	TPS6594_IRQ_NRSTOUT_READBACK,
+	/* INT_SEVERE_ERR register */
+	TPS6594_IRQ_TSD_IMM,
+	TPS6594_IRQ_VCCA_OVP,
+	TPS6594_IRQ_PFSM_ERR,
+	/* INT_FSM_ERR register */
+	TPS6594_IRQ_IMM_SHUTDOWN,
+	TPS6594_IRQ_ORD_SHUTDOWN,
+	TPS6594_IRQ_MCU_PWR_ERR,
+	TPS6594_IRQ_SOC_PWR_ERR,
+	/* INT_COMM_ERR register */
+	TPS6594_IRQ_COMM_FRM_ERR,
+	TPS6594_IRQ_COMM_CRC_ERR,
+	TPS6594_IRQ_COMM_ADR_ERR,
+	TPS6594_IRQ_I2C2_CRC_ERR,
+	TPS6594_IRQ_I2C2_ADR_ERR,
+	/* INT_READBACK_ERR register */
+	TPS6594_IRQ_EN_DRV_READBACK,
+	TPS6594_IRQ_NRSTOUT_SOC_READBACK,
+	/* INT_ESM register */
+	TPS6594_IRQ_ESM_SOC_PIN,
+	TPS6594_IRQ_ESM_SOC_FAIL,
+	TPS6594_IRQ_ESM_SOC_RST,
+	/* RTC_STATUS register */
+	TPS6594_IRQ_TIMER,
+	TPS6594_IRQ_ALARM,
+	TPS6594_IRQ_POWER_UP,
+};
+
+#define TPS6594_IRQ_NAME_BUCK1_OV		"buck1_ov"
+#define TPS6594_IRQ_NAME_BUCK1_UV		"buck1_uv"
+#define TPS6594_IRQ_NAME_BUCK1_SC		"buck1_sc"
+#define TPS6594_IRQ_NAME_BUCK1_ILIM		"buck1_ilim"
+#define TPS6594_IRQ_NAME_BUCK2_OV		"buck2_ov"
+#define TPS6594_IRQ_NAME_BUCK2_UV		"buck2_uv"
+#define TPS6594_IRQ_NAME_BUCK2_SC		"buck2_sc"
+#define TPS6594_IRQ_NAME_BUCK2_ILIM		"buck2_ilim"
+#define TPS6594_IRQ_NAME_BUCK3_OV		"buck3_ov"
+#define TPS6594_IRQ_NAME_BUCK3_UV		"buck3_uv"
+#define TPS6594_IRQ_NAME_BUCK3_SC		"buck3_sc"
+#define TPS6594_IRQ_NAME_BUCK3_ILIM		"buck3_ilim"
+#define TPS6594_IRQ_NAME_BUCK4_OV		"buck4_ov"
+#define TPS6594_IRQ_NAME_BUCK4_UV		"buck4_uv"
+#define TPS6594_IRQ_NAME_BUCK4_SC		"buck4_sc"
+#define TPS6594_IRQ_NAME_BUCK4_ILIM		"buck4_ilim"
+#define TPS6594_IRQ_NAME_BUCK5_OV		"buck5_ov"
+#define TPS6594_IRQ_NAME_BUCK5_UV		"buck5_uv"
+#define TPS6594_IRQ_NAME_BUCK5_SC		"buck5_sc"
+#define TPS6594_IRQ_NAME_BUCK5_ILIM		"buck5_ilim"
+#define TPS6594_IRQ_NAME_LDO1_OV		"ldo1_ov"
+#define TPS6594_IRQ_NAME_LDO1_UV		"ldo1_uv"
+#define TPS6594_IRQ_NAME_LDO1_SC		"ldo1_sc"
+#define TPS6594_IRQ_NAME_LDO1_ILIM		"ldo1_ilim"
+#define TPS6594_IRQ_NAME_LDO2_OV		"ldo2_ov"
+#define TPS6594_IRQ_NAME_LDO2_UV		"ldo2_uv"
+#define TPS6594_IRQ_NAME_LDO2_SC		"ldo2_sc"
+#define TPS6594_IRQ_NAME_LDO2_ILIM		"ldo2_ilim"
+#define TPS6594_IRQ_NAME_LDO3_OV		"ldo3_ov"
+#define TPS6594_IRQ_NAME_LDO3_UV		"ldo3_uv"
+#define TPS6594_IRQ_NAME_LDO3_SC		"ldo3_sc"
+#define TPS6594_IRQ_NAME_LDO3_ILIM		"ldo3_ilim"
+#define TPS6594_IRQ_NAME_LDO4_OV		"ldo4_ov"
+#define TPS6594_IRQ_NAME_LDO4_UV		"ldo4_uv"
+#define TPS6594_IRQ_NAME_LDO4_SC		"ldo4_sc"
+#define TPS6594_IRQ_NAME_LDO4_ILIM		"ldo4_ilim"
+#define TPS6594_IRQ_NAME_VCCA_OV		"vcca_ov"
+#define TPS6594_IRQ_NAME_VCCA_UV		"vcca_uv"
+#define TPS6594_IRQ_NAME_VMON1_OV		"vmon1_ov"
+#define TPS6594_IRQ_NAME_VMON1_UV		"vmon1_uv"
+#define TPS6594_IRQ_NAME_VMON1_RV		"vmon1_rv"
+#define TPS6594_IRQ_NAME_VMON2_OV		"vmon2_ov"
+#define TPS6594_IRQ_NAME_VMON2_UV		"vmon2_uv"
+#define TPS6594_IRQ_NAME_VMON2_RV		"vmon2_rv"
+#define TPS6594_IRQ_NAME_GPIO9			"gpio9"
+#define TPS6594_IRQ_NAME_GPIO10			"gpio10"
+#define TPS6594_IRQ_NAME_GPIO11			"gpio11"
+#define TPS6594_IRQ_NAME_GPIO1			"gpio1"
+#define TPS6594_IRQ_NAME_GPIO2			"gpio2"
+#define TPS6594_IRQ_NAME_GPIO3			"gpio3"
+#define TPS6594_IRQ_NAME_GPIO4			"gpio4"
+#define TPS6594_IRQ_NAME_GPIO5			"gpio5"
+#define TPS6594_IRQ_NAME_GPIO6			"gpio6"
+#define TPS6594_IRQ_NAME_GPIO7			"gpio7"
+#define TPS6594_IRQ_NAME_GPIO8			"gpio8"
+#define TPS6594_IRQ_NAME_NPWRON_START		"npwron_start"
+#define TPS6594_IRQ_NAME_ENABLE			"enable"
+#define TPS6594_IRQ_NAME_FSD			"fsd"
+#define TPS6594_IRQ_NAME_SOFT_REBOOT		"soft_reboot"
+#define TPS6594_IRQ_NAME_BIST_PASS		"bist_pass"
+#define TPS6594_IRQ_NAME_EXT_CLK		"ext_clk"
+#define TPS6594_IRQ_NAME_TWARN			"twarn"
+#define TPS6594_IRQ_NAME_TSD_ORD		"tsd_ord"
+#define TPS6594_IRQ_NAME_BIST_FAIL		"bist_fail"
+#define TPS6594_IRQ_NAME_REG_CRC_ERR		"reg_crc_err"
+#define TPS6594_IRQ_NAME_RECOV_CNT		"recov_cnt"
+#define TPS6594_IRQ_NAME_SPMI_ERR		"spmi_err"
+#define TPS6594_IRQ_NAME_NPWRON_LONG		"npwron_long"
+#define TPS6594_IRQ_NAME_NINT_READBACK		"nint_readback"
+#define TPS6594_IRQ_NAME_NRSTOUT_READBACK	"nrstout_readback"
+#define TPS6594_IRQ_NAME_TSD_IMM		"tsd_imm"
+#define TPS6594_IRQ_NAME_VCCA_OVP		"vcca_ovp"
+#define TPS6594_IRQ_NAME_PFSM_ERR		"pfsm_err"
+#define TPS6594_IRQ_NAME_IMM_SHUTDOWN		"imm_shutdown"
+#define TPS6594_IRQ_NAME_ORD_SHUTDOWN		"ord_shutdown"
+#define TPS6594_IRQ_NAME_MCU_PWR_ERR		"mcu_pwr_err"
+#define TPS6594_IRQ_NAME_SOC_PWR_ERR		"soc_pwr_err"
+#define TPS6594_IRQ_NAME_COMM_FRM_ERR		"comm_frm_err"
+#define TPS6594_IRQ_NAME_COMM_CRC_ERR		"comm_crc_err"
+#define TPS6594_IRQ_NAME_COMM_ADR_ERR		"comm_adr_err"
+#define TPS6594_IRQ_NAME_EN_DRV_READBACK	"en_drv_readback"
+#define TPS6594_IRQ_NAME_NRSTOUT_SOC_READBACK	"nrstout_soc_readback"
+#define TPS6594_IRQ_NAME_ESM_SOC_PIN		"esm_soc_pin"
+#define TPS6594_IRQ_NAME_ESM_SOC_FAIL		"esm_soc_fail"
+#define TPS6594_IRQ_NAME_ESM_SOC_RST		"esm_soc_rst"
+#define TPS6594_IRQ_NAME_TIMER			"timer"
+#define TPS6594_IRQ_NAME_ALARM			"alarm"
+#define TPS6594_IRQ_NAME_POWERUP		"powerup"
+
+/**
+ * struct tps6594 - device private data structure
+ *
+ * @dev:      MFD parent device
+ * @chip_id:  chip ID
+ * @reg:      I2C slave address or SPI chip select number
+ * @use_crc:  if true, use CRC for I2C and SPI interface protocols
+ * @regmap:   regmap for accessing the device registers
+ * @irq:      irq generated by the device
+ * @irq_data: regmap irq data used for the irq chip
+ */
+struct tps6594 {
+	struct device *dev;
+	unsigned long chip_id;
+	unsigned short reg;
+	bool use_crc;
+	struct regmap *regmap;
+	int irq;
+	struct regmap_irq_chip_data *irq_data;
+};
+
+bool tps6594_is_volatile_reg(struct device *dev, unsigned int reg);
+int tps6594_device_init(struct tps6594 *tps, bool enable_crc);
+
+#endif /*  __LINUX_MFD_TPS6594_H */